sparse cleanup

Fix various things that sparse complains about:
 - use NULL instead of 0
 - make sure we declare everything properly, or mark it static
 - use proper function declarations ("fn(void)" instead of "fn()")

Sparse is always right.

1 files changed, 1 insertions, 1 deletions

diff --git a/init-db.c b/init-db.c
index b6bb78356..a281f302e 100644
--- a/init-db.c
+++ b/init-db.c
@@ -5,7 +5,7 @@
  */
 #include "cache.h"
 
-void safe_create_dir(const char *dir)
+static void safe_create_dir(const char *dir)
 {
 	if (mkdir(dir, 0755) < 0) {
 		if (errno != EEXIST) {