date: handle long options

RFC2822 obsoletes RFC822; Silently accept --rfc-822 and return rfc2822
output for compatibility.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/include/usage.h b/include/usage.h
index 8316c4368..ca8810650 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -673,17 +673,27 @@
 #define date_full_usage "\n\n" \
        "Display time (using +FMT), or set time\n" \
      "\nOptions:" \
+        IF_NOT_LONG_OPTS( \
      "\n        [-s] TIME       Set time to TIME" \
      "\n        -u              Work in UTC (don't convert to local time)" \
-     "\n        -R              Output RFC-822 compliant date string" \
+     "\n        -R              Output RFC-2822 compliant date string" \
+        ) IF_LONG_OPTS( \
+     "\n        [-s,--set] TIME Set time to TIME" \
+     "\n        -u,--utc                Work in UTC (don't convert to local time)" \
+     "\n        -R,--rfc-2822           Output RFC-2822 compliant date string" \
+        ) \
         IF_FEATURE_DATE_ISOFMT( \
      "\n        -I[SPEC]        Output ISO-8601 compliant date string" \
      "\n                        SPEC='date' (default) for date only," \
      "\n                        'hours', 'minutes', or 'seconds' for date and" \
      "\n                        time to the indicated precision" \
-        ) \
+        ) IF_NOT_LONG_OPTS( \
      "\n        -r FILE         Display last modification time of FILE" \
      "\n        -d TIME         Display TIME, not 'now'" \
+        ) IF_LONG_OPTS( \
+     "\n        -r,--reference FILE             Display last modification time of FILE" \
+     "\n        -d,--date TIME          Display TIME, not 'now'" \
+        ) \
         IF_FEATURE_DATE_ISOFMT( \
      "\n        -D FMT          Use FMT for -d TIME conversion" \
         ) \