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, 2 insertions, 0 deletions

diff --git a/date.c b/date.c
index b0b83c9da2..1f366a67f8 100644
--- a/date.c
+++ b/date.c
@@ -10,6 +10,8 @@
 #include <ctype.h>
 #include <time.h>
 
+#include "cache.h"
+
 static time_t my_mktime(struct tm *tm)
 {
 	static const int mdays[] = {