calendarspec: minor simplification

src/shared/calendarspec.c

@@ -369,14 +369,13 @@ int calendar_spec_to_string(const CalendarSpec *c, char **p) {
         }
 
         r = fflush_and_check(f);
+        fclose(f);
+
         if (r < 0) {
                 free(buf);
-                fclose(f);
                 return r;
         }
 
-        fclose(f);
-
         *p = buf;
         return 0;
 }