rc-logger.c: fix crash on fclose(NULL) (#137)

Only close the log if we successfully opened it.

Reported-by: Brian Evans <grknight@gentoo.org>
Tested-by: Brian Evans <grknight@gentoo.org>
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

src/rc/rc-logger.c

@@ -261,12 +261,12 @@ rc_logger_open(const char *level)
 						break;
 					}
 				}
+				fclose(log);
 			} else {
 				log_error = 1;
 				eerror("Error: fopen(%s) failed: %s", TMPLOG, strerror(errno));
 			}
 
-			fclose(log);
 			fclose(plog);
 		} else {
 			/*