Add missing #include.

On non-Windows systems, sys/time.h was pulled in by portability/instr_time.h,
which pulled in time.h. We certainly should include time.h directly, since
we're using time(2), but the indirect include masked the problem on most
platforms.

Andres Freund

src/bin/psql/command.c

@@ -13,6 +13,7 @@
 #endif
 
 #include <ctype.h>
+#include <time.h>
 #ifdef HAVE_PWD_H
 #include <pwd.h>
 #endif