maint: remove trailing white space from a few files

* NEWS: Remove trailing white space.
* NEWS-2.0: Likewise.
* contrib/checklinkx: Likewise.
* doc/local.mk (chlx_args): Likewise.
* m4/python.m4: Likewise.
* t/test-extensions-empty.sh: Likewise.

6 files changed, 9 insertions, 9 deletions

diff --git a/NEWS b/NEWS
index 7507b1b4e..21f8729a7 100644
--- a/NEWS
+++ b/NEWS
@@ -13,7 +13,7 @@ New in ?.?.?:
     are used, as in the past. (The change in 1.16.3 was too incompatible.)
 
   - consistently depend on install-libLTLIBRARIES.
-  
+
 * Distribution
 
   - use const for yyerror declaration in bison/yacc tests.
diff --git a/NEWS-2.0 b/NEWS-2.0
index 743138ca9..5c56aa6e0 100644
--- a/NEWS-2.0
+++ b/NEWS-2.0
@@ -62,8 +62,8 @@ warranted.  For more info, see the ./PLANS/ directory.
     certainty about this though: we'd first like to wait and see
     whether future Autoconf versions will be enhanced to guarantee
     that such a shell is always found and provided by the checks in
-    ./configure. 
-    
+    ./configure.
+
     In 2020, config.guess was changed by its then-maintainer to require
     $(...); the ensuing bug reports and maintenance hassle
     (unfortunately the changes have not been reverted) are a convincing
diff --git a/contrib/checklinkx b/contrib/checklinkx
index 1c0a135c1..2e81bb17f 100755
--- a/contrib/checklinkx
+++ b/contrib/checklinkx
@@ -870,14 +870,14 @@ sub parse_arguments ()
       # was that string all along.
       $Opts{Exclude} = $exclude_rx;
     }
-    
+
     if ($Opts{Exclude_Url_File}) {
         # The idea is that if the specified file exists, we read it and
         # treat it as a list of excludes. If the file doesn't exist, we
         # write it with all the urls that were successful. That way, we
         # can avoid re-checking them on every run, and it can be removed
         # externally (from cron) to get re-updated.
-        # 
+        #
         # We distinguish the cases here, and either add to
         # $Opts{Exclude} if reading, or setting Exclude_File_Write in
         # %Opts if writing (even though it is not really an option,
diff --git a/doc/local.mk b/doc/local.mk
index 34b959f5b..f61a7288e 100644
--- a/doc/local.mk
+++ b/doc/local.mk
@@ -65,7 +65,7 @@ chlx_args = -v --sleep 8 #--exclude-url-file=/tmp/xf
 # - mailto urls, they are always forbidden.
 # - vala, redirects to a Gnome subpage and returns 403 to us.
 # - cfortran, forbidden by site's robots.txt.
-# - search.cpan.org, gets 
+# - search.cpan.org, gets
 # - debbugs.gnu.org/automake, forbidden by robots.txt.
 # - autoconf.html, forbidden by robots.txt (since served from savannah).
 # - https://fsf.org redirects to https://www.fsf.org and nothing to do
diff --git a/m4/python.m4 b/m4/python.m4
index 3a903a7c6..4e7de9427 100644
--- a/m4/python.m4
+++ b/m4/python.m4
@@ -108,11 +108,11 @@ AC_DEFUN([AM_PATH_PYTHON],
   dnl and sys.exec_prefix for the corresponding values of PYTHON_PREFIX
   dnl and PYTHON_EXEC_PREFIX. Otherwise, use the GNU ${prefix} and
   dnl ${exec_prefix} variables.
-  dnl 
+  dnl
   dnl The two are made distinct variables so they can be overridden if
   dnl need be, although general consensus is that you shouldn't need
   dnl this separation.
-  dnl 
+  dnl
   dnl Also allow directly setting the prefixes via configure options,
   dnl overriding any default.
   dnl
diff --git a/t/test-extensions-empty.sh b/t/test-extensions-empty.sh
index 915bf5c9b..d9d3cd1df 100755
--- a/t/test-extensions-empty.sh
+++ b/t/test-extensions-empty.sh
@@ -35,7 +35,7 @@ END
 
 touch foo.test
 
-autoreconf -fi >reconf.out 2>&1 
+autoreconf -fi >reconf.out 2>&1
 grep 'uninitialized value' reconf.out && exit 1
 
 # What we're trying to avoid: