*.[ch]: remove extern from function declarations using spatch

There has been a push to remove extern from function declarations.
Remove some instances of "extern" for function declarations which are
caught by Coccinelle. Note that Coccinelle has some difficulty with
processing functions with `__attribute__` or varargs so some `extern`
declarations are left behind to be dealt with in a future patch.

This was the Coccinelle patch used:

	@@
	type T;
	identifier f;
	@@
	- extern
	  T f(...);

and it was run with:

	$ git ls-files \*.{c,h} |
		grep -v ^compat/ |
		xargs spatch --sp-file contrib/coccinelle/noextern.cocci --in-place

Files under `compat/` are intentionally excluded as some are directly
copied from external sources and we should avoid churning them as much
as possible.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/bulk-checkin.h b/bulk-checkin.h
index f438f93811..bf830e780d 100644
--- a/bulk-checkin.h
+++ b/bulk-checkin.h
@@ -6,11 +6,11 @@
 
 #include "cache.h"
 
-extern int index_bulk_checkin(struct object_id *oid,
+int index_bulk_checkin(struct object_id *oid,
 			      int fd, size_t size, enum object_type type,
 			      const char *path, unsigned flags);
 
-extern void plug_bulk_checkin(void);
-extern void unplug_bulk_checkin(void);
+void plug_bulk_checkin(void);
+void unplug_bulk_checkin(void);
 
 #endif