[PATCH] clean up extern decl of functions

[Junio C Hamano <gitster@pobox.com>]

Among external function declarations, somehow only these two
functions that return pointer-to-function were declared with
"extern" in front.

Ideally, we should standardise to _have_ explicit "extern" in front
for all function (and data) decls, but let's make things uniform
first.  Bulk re-addition of extern can be done without any extra
difficulty with or without this change.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

 * A patch before morning coffee, could be totally off the mark with
   trivial thinko.

 git-compat-util.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/git-compat-util.h b/git-compat-util.h
index 7a0fb7a045..56e0e1e79d 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -491,9 +491,9 @@ static inline int const_error(void)
 
 void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
 void set_error_routine(void (*routine)(const char *err, va_list params));
-extern void (*get_error_routine(void))(const char *err, va_list params);
+void (*get_error_routine(void))(const char *err, va_list params);
 void set_warn_routine(void (*routine)(const char *warn, va_list params));
-extern void (*get_warn_routine(void))(const char *warn, va_list params);
+void (*get_warn_routine(void))(const char *warn, va_list params);
 void set_die_is_recursing_routine(int (*routine)(void));
 
 int starts_with(const char *str, const char *prefix);