[cft] Small patch for calendar(1)

Hi,

for a while now, calendar(1) seems to have forgotten how to handle what 
the man page describes as: 'A month without a day matches the first of 
that month.'

A notable result of this is, that the output of 'calendar -f 
/usr/share/calendar/calendar.all' is always headed by 'Unprocessed' 
error messages.

The attached patch tries to help calendar(1) remember how to do this as 
is described in the man page.


Since I'm not an avid calendar(1) user, I'd very much like others to 
review and try out the patch, before I go pester commiters by opening a PR.


MfG CoCo



--- src/usr.bin/calendar/parsedata.c.orig	2011-12-31 11:36:40.000000000 +0100
+++ src/usr.bin/calendar/parsedata.c	2011-12-31 11:57:55.000000000 +0100
_at__at_ -174,11 +174,22 _at__at_
 			}
 			if (isonlydigits(date, 1)) {
 				/* Assume month number only */
-				*flags |= F_MONTH;
+				*flags |= (F_MONTH | F_DAYOFMONTH);
+				*idayofmonth = 1;
 				*imonth = (int)strtol(date, (char **)NULL, 10);
 				strcpy(month, getmonthname(*imonth));
 				return(1);
 			}
+			if ((checkmonth(date, &len, &offset, &pmonth) != 0)) {
+				/* Assume month name only */
+				*flags |= (F_MONTH | F_DAYOFMONTH);
+				*idayofmonth = 1;
+				*imonth = offset;
+				strcpy(month, getmonthname(*imonth));
+				return(1);
+			}
+
+
 			return (0);
 		}
 	}