Removed warnings from cache.c

Removed warnings from cache.c

cache.c:812: warning: missing initializer
cache.c:812: warning: (near initialization for 'cachelist[0].f')
cache.c:813: warning: missing initializer
cache.c:813: warning: (near initialization for 'cachelist[1].f')
cache.c:814: warning: missing initializer
cache.c:814: warning: (near initialization for 'cachelist[2].f')
cache.c:815: warning: missing initializer
cache.c:815: warning: (near initialization for 'cachelist[3].f')
cache.c:816: warning: missing initializer
cache.c:816: warning: (near initialization for 'cachelist[4].f')
cache.c: In function 'cache_export_ent':
cache.c:887: warning: comparison between signed and unsigned integer expressions
cache.c:907: warning: comparison between signed and unsigned integer expressions

Signed-off-by: Steve Dickson <steved@redhat.com>