Have correct_tm set tm_wday as well.

The tm_wday field had been left uninitialized, which was causing
some assertions to fail on Windows unit tests.

Fixes bug 18977.

changes/bug18977

@@ -0,0 +1,4 @@
+  o Minor bugfixes (time handling):
+    - When correcting a corrupt 'struct tm' value, fill in the tm_wday
+      field. Otherwise, our unit tests crash on Windows.
+      Fixes bug 18977; bugfix on 0.2.2.25-alpha.

src/common/compat.c

@@ -2462,6 +2462,7 @@ correct_tm(int islocal, const time_t *timep, struct tm *resultbuf,
       r->tm_mon = 11;
       r->tm_mday = 31;
       r->tm_yday = 365;
+      r->tm_wday = 6;
       r->tm_hour = 23;
       r->tm_min = 59;
       r->tm_sec = 59;
@@ -2479,6 +2480,7 @@ correct_tm(int islocal, const time_t *timep, struct tm *resultbuf,
       r->tm_mon = 0;
       r->tm_mday = 1;
       r->tm_yday = 1;
+      r->tm_wday = 0;
       r->tm_hour = 0;
       r->tm_min = 0 ;
       r->tm_sec = 0;
@@ -2492,6 +2494,7 @@ correct_tm(int islocal, const time_t *timep, struct tm *resultbuf,
       r->tm_mon = 11;
       r->tm_mday = 31;
       r->tm_yday = 365;
+      r->tm_wday = 6;
       r->tm_hour = 23;
       r->tm_min = 59;
       r->tm_sec = 59;

src/common/util.c

@@ -1460,6 +1460,7 @@ parse_iso_time(const char *cp, time_t *t)
   st_tm.tm_hour = hour;
   st_tm.tm_min = minute;
   st_tm.tm_sec = second;
+  st_tm.tm_wday = 0; /* Should be ignored. */
 
   if (st_tm.tm_year < 70) {
     char *esc = esc_for_log(cp);
@@ -1517,6 +1518,7 @@ parse_http_time(const char *date, struct tm *tm)
   tm->tm_hour = (int)tm_hour;
   tm->tm_min = (int)tm_min;
   tm->tm_sec = (int)tm_sec;
+  tm->tm_wday = 0; /* Leave this unset. */
 
   month[3] = '\0';
   /* Okay, now decode the month. */