pager.h: move declarations for pager.c functions from cache.h

Signed-off-by: Elijah Newren <newren@gmail.com>
Acked-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/var.c

@@ -7,6 +7,7 @@
 #include "config.h"
 #include "editor.h"
 #include "ident.h"
+#include "pager.h"
 #include "refs.h"
 
 static const char var_usage[] = "git var (-l | <variable>)";