fix processing of strptime %p format

string pointer was not advanced after matching.
diff --git a/src/time/strptime.c b/src/time/strptime.c
index da9e1f4..cff0a7c 100644
--- a/src/time/strptime.c
+++ b/src/time/strptime.c
@@ -94,6 +94,7 @@
 			len = strlen(ex);
 			if (!strncasecmp(s, ex, len)) {
 				tm->tm_hour %= 12;
+				s += len;
 				break;
 			}
 			ex = nl_langinfo(PM_STR);
@@ -101,6 +102,7 @@
 			if (!strncasecmp(s, ex, len)) {
 				tm->tm_hour %= 12;
 				tm->tm_hour += 12;
+				s += len;
 				break;
 			}
 			return 0;