BUG/MINOR: ssl/crt-list: crt-list could end without a \n

Since the refactoring of the crt-list, the same function is used to
parse a crt-list file and a crt-list line on the CLI.

The assumption that a line on the CLI and a line in a file is finished
by a \n was made. However that is potentialy not the case with a file
which does not finish by a \n.

This patch fixes issue #860 and must be backported in 2.2.
diff --git a/src/ssl_crtlist.c b/src/ssl_crtlist.c
index 2ef3a37..b813787 100644
--- a/src/ssl_crtlist.c
+++ b/src/ssl_crtlist.c
@@ -380,8 +380,8 @@
 			cfgerr |= ERR_ALERT | ERR_FATAL;
 			goto error;
 		}
-
-		*(end - 1) = '\0'; /* line parser mustn't receive any \n */
+		if (*(end - 1) == '\n')
+			*(end - 1) = '\0'; /* line parser mustn't receive any \n */
 		cfgerr |= crtlist_parse_line(thisline, &crt_path, entry, file, linenum, err);
 		if (cfgerr)
 			goto error;