imap-related bugfixes.

* imap4d/search.c (imap4d_search0): Use parsebuf.err_mesg if defined,
otherwise fall back to the general "parse error" message.
* include/mailutils/datetime.h (MU_DATETIME_INTERNALDATE): Use %e for
day. Day can be one-digit decimal.
* libmailutils/datetime/scantime.c (mu_scan_datetime): Skip initial
ws for %e.
* mu/imap.c (com_search): Print newline after the "no matches" message.

@@ -313,8 +313,8 @@ imap4d_search0 (imap4d_tokbuf_t tok, int isuid, char **err_text)
   parsebuf.tree = parse_search_key_list (&parsebuf);
   if (!parsebuf.tree)
     {
+      *err_text = parsebuf.err_mesg ? parsebuf.err_mesg : "Parse error";
       parse_free_mem (&parsebuf);
-      *err_text = "Parse error";
       return RESP_BAD;
     }
 

@@ -79,7 +79,7 @@ int mu_scan_datetime (const char *input, const char *fmt, struct tm *tm,
 #define MU_DATETIME_FROM_LENGTH 24
 
 #define MU_DATETIME_IMAP         "%d-%b-%Y %H:%M:%S %z"
-#define MU_DATETIME_INTERNALDATE "%d-%b-%Y%$ %H:%M:%S %z"
+#define MU_DATETIME_INTERNALDATE "%e-%b-%Y%$ %H:%M:%S %z"
 
   /* RFC2822 date.  Scan format contains considerable allowances which would
      stun formatting functions, therefore two distinct formats are provided:

@@ -425,6 +425,8 @@ mu_scan_datetime (const char *input, const char *fmt,
 	      {
 		int ndig;
 
+		if (*input == ' ')
+		  ++input;
 		n = get_num (input, &p, 2, 1, 31, &ndig);
 		if (n == -1)
 		  rc = MU_ERR_PARSE;

@@ -1138,7 +1138,7 @@ com_search (int argc, char **argv)
   rc = mu_msgset_count (mset, &count);
   if (rc == EINVAL || count == 0)
     {
-      mu_printf (_("no matches"));
+      mu_printf ("%s\n", _("no matches"));
       return 0;
     }
   mu_printf ("%lu matches:", (unsigned long) count);