Use correct day of year in correct_tm()

Set the correct day of year value in correct_tm() when the
system's localtime(_r) or gmtime(_r) functions fail to set struct tm.

Fixes bug 13476.

changes/bug13476-improve-time-handling

@@ -0,0 +1,4 @@
+  o Minor bugfixes:
+    - Set the correct day of year value when the system's localtime(_r)
+      or gmtime(_r) functions fail to set struct tm.
+      Fixes bug 13476.

src/common/compat.c

@@ -2774,7 +2774,7 @@ correct_tm(int islocal, const time_t *timep, struct tm *resultbuf,
       r->tm_year = 8099;
       r->tm_mon = 11;
       r->tm_mday = 31;
-      r->tm_yday = 365;
+      r->tm_yday = 364;
       r->tm_hour = 23;
       r->tm_min = 59;
       r->tm_sec = 59;
@@ -2791,7 +2791,7 @@ correct_tm(int islocal, const time_t *timep, struct tm *resultbuf,
       r->tm_year = 70; /* 1970 CE */
       r->tm_mon = 0;
       r->tm_mday = 1;
-      r->tm_yday = 1;
+      r->tm_yday = 0;
       r->tm_hour = 0;
       r->tm_min = 0 ;
       r->tm_sec = 0;
@@ -2804,7 +2804,7 @@ correct_tm(int islocal, const time_t *timep, struct tm *resultbuf,
       r->tm_year = 137; /* 2037 CE */
       r->tm_mon = 11;
       r->tm_mday = 31;
-      r->tm_yday = 365;
+      r->tm_yday = 364;
       r->tm_hour = 23;
       r->tm_min = 59;
       r->tm_sec = 59;