unzip -l: add missed big-endian conversions date and time

When calling unzip -l the date and time output was missing big-endian
conversions.

Signed-off-by: Peter Kaestle <peter.kaestle@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

archival/unzip.c

@@ -118,6 +118,8 @@ typedef union {
 #define FIX_ENDIANNESS_ZIP(zip) \
 do { if (BB_BIG_ENDIAN) { \
 	(zip).fmt.method        = SWAP_LE16((zip).fmt.method      ); \
+	(zip).fmt.modtime       = SWAP_LE16((zip).fmt.modtime     ); \
+	(zip).fmt.moddate       = SWAP_LE16((zip).fmt.moddate     ); \
 	(zip).fmt.crc32         = SWAP_LE32((zip).fmt.crc32       ); \
 	(zip).fmt.cmpsize       = SWAP_LE32((zip).fmt.cmpsize     ); \
 	(zip).fmt.ucmpsize      = SWAP_LE32((zip).fmt.ucmpsize    ); \