SERVER-39560 - remove leading blank line on all C++ files

Remove leading comments that are just stating the filename.
Move any file-level comments below the copyright banner.
Remove leading blank lines.

19 files changed, 4 insertions, 30 deletions

diff --git a/src/mongo/db/stats/counters.cpp b/src/mongo/db/stats/counters.cpp
index 406385b28c9..4c5fa73bcd4 100644
--- a/src/mongo/db/stats/counters.cpp
+++ b/src/mongo/db/stats/counters.cpp
@@ -1,5 +1,3 @@
-// counters.cpp
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/counters.h b/src/mongo/db/stats/counters.h
index 699dbb43b12..d74402c8571 100644
--- a/src/mongo/db/stats/counters.h
+++ b/src/mongo/db/stats/counters.h
@@ -1,5 +1,3 @@
-// counters.h
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/fill_locker_info.cpp b/src/mongo/db/stats/fill_locker_info.cpp
index 407c2060c62..f78b3a991e4 100644
--- a/src/mongo/db/stats/fill_locker_info.cpp
+++ b/src/mongo/db/stats/fill_locker_info.cpp
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/fill_locker_info.h b/src/mongo/db/stats/fill_locker_info.h
index 613d4c4411e..7f5f6d62874 100644
--- a/src/mongo/db/stats/fill_locker_info.h
+++ b/src/mongo/db/stats/fill_locker_info.h
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/fill_locker_info_test.cpp b/src/mongo/db/stats/fill_locker_info_test.cpp
index 7d4a049c32a..8a2f671b873 100644
--- a/src/mongo/db/stats/fill_locker_info_test.cpp
+++ b/src/mongo/db/stats/fill_locker_info_test.cpp
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/fine_clock.h b/src/mongo/db/stats/fine_clock.h
index 9023812375d..d01c2e74d4a 100644
--- a/src/mongo/db/stats/fine_clock.h
+++ b/src/mongo/db/stats/fine_clock.h
@@ -1,6 +1,3 @@
-// fine_clock.h
-
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/operation_latency_histogram.cpp b/src/mongo/db/stats/operation_latency_histogram.cpp
index 3e02e26be18..2c881eab1e0 100644
--- a/src/mongo/db/stats/operation_latency_histogram.cpp
+++ b/src/mongo/db/stats/operation_latency_histogram.cpp
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/operation_latency_histogram.h b/src/mongo/db/stats/operation_latency_histogram.h
index 9999f0255be..7167e92eb63 100644
--- a/src/mongo/db/stats/operation_latency_histogram.h
+++ b/src/mongo/db/stats/operation_latency_histogram.h
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/operation_latency_histogram_test.cpp b/src/mongo/db/stats/operation_latency_histogram_test.cpp
index 77559a5bae2..0d1dd0d5efe 100644
--- a/src/mongo/db/stats/operation_latency_histogram_test.cpp
+++ b/src/mongo/db/stats/operation_latency_histogram_test.cpp
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/server_read_concern_metrics.h b/src/mongo/db/stats/server_read_concern_metrics.h
index a79a7cea49e..c1fb8626d95 100644
--- a/src/mongo/db/stats/server_read_concern_metrics.h
+++ b/src/mongo/db/stats/server_read_concern_metrics.h
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/server_write_concern_metrics.h b/src/mongo/db/stats/server_write_concern_metrics.h
index 9a9525d1b30..d24396e67c8 100644
--- a/src/mongo/db/stats/server_write_concern_metrics.h
+++ b/src/mongo/db/stats/server_write_concern_metrics.h
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/storage_stats.cpp b/src/mongo/db/stats/storage_stats.cpp
index ca4d68e310a..fed4a513a90 100644
--- a/src/mongo/db/stats/storage_stats.cpp
+++ b/src/mongo/db/stats/storage_stats.cpp
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/storage_stats.h b/src/mongo/db/stats/storage_stats.h
index 0b3b76b277c..377210bb765 100644
--- a/src/mongo/db/stats/storage_stats.h
+++ b/src/mongo/db/stats/storage_stats.h
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/timer_stats.cpp b/src/mongo/db/stats/timer_stats.cpp
index f2c4a4aca30..bb52e0226d7 100644
--- a/src/mongo/db/stats/timer_stats.cpp
+++ b/src/mongo/db/stats/timer_stats.cpp
@@ -1,6 +1,3 @@
-// timer_stats.cpp
-
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/timer_stats.h b/src/mongo/db/stats/timer_stats.h
index 31cbfeba9cb..d09533bd537 100644
--- a/src/mongo/db/stats/timer_stats.h
+++ b/src/mongo/db/stats/timer_stats.h
@@ -1,6 +1,3 @@
-// timer_stats.h
-
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/timer_stats_test.cpp b/src/mongo/db/stats/timer_stats_test.cpp
index ef44ba0d0bc..d96acdc1786 100644
--- a/src/mongo/db/stats/timer_stats_test.cpp
+++ b/src/mongo/db/stats/timer_stats_test.cpp
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/top.cpp b/src/mongo/db/stats/top.cpp
index a4b8e5e348d..1043a3401be 100644
--- a/src/mongo/db/stats/top.cpp
+++ b/src/mongo/db/stats/top.cpp
@@ -1,5 +1,3 @@
-// top.cpp
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
diff --git a/src/mongo/db/stats/top.h b/src/mongo/db/stats/top.h
index 29b40f6cca2..f1586a2b05e 100644
--- a/src/mongo/db/stats/top.h
+++ b/src/mongo/db/stats/top.h
@@ -1,6 +1,3 @@
-// top.h : DB usage monitor.
-
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *
@@ -32,6 +29,10 @@
 
 #pragma once
 
+/**
+ * DB usage monitor.
+ */
+
 #include <boost/date_time/posix_time/posix_time.hpp>
 
 #include "mongo/db/commands.h"
diff --git a/src/mongo/db/stats/top_test.cpp b/src/mongo/db/stats/top_test.cpp
index eaa7444cac4..2125506625b 100644
--- a/src/mongo/db/stats/top_test.cpp
+++ b/src/mongo/db/stats/top_test.cpp
@@ -1,4 +1,3 @@
-
 /**
  *    Copyright (C) 2018-present MongoDB, Inc.
  *