Make "cat-file" output the file contents to stdout.

New syntax: "cat-file -t <sha1>" shows the tag, while "cat-file <tag> <sha1>"
outputs the file contents after checking that the supplied tag matches.

1 files changed, 1 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index 98a32a9ad3..b1313c503c 100644
--- a/cache.h
+++ b/cache.h
@@ -7,6 +7,7 @@
 #include <stddef.h>
 #include <stdlib.h>
 #include <stdarg.h>
+#include <string.h>
 #include <errno.h>
 #include <sys/mman.h>