credentials: make line reading Windows compatible

This commit makes reading process regarding credentials compatible with
'CR/LF' line ending. It makes using git more convenient on systems like
Windows.

Author: nyckyta

credential-cache--daemon.c

@@ -96,12 +96,12 @@ static int read_request(FILE *fh, struct credential *c,
 	static struct strbuf item = STRBUF_INIT;
 	const char *p;
 
-	strbuf_getline_lf(&item, fh);
+	strbuf_getline(&item, fh);
 	if (!skip_prefix(item.buf, "action=", &p))
 		return error("client sent bogus action line: %s", item.buf);
 	strbuf_addstr(action, p);
 
-	strbuf_getline_lf(&item, fh);
+	strbuf_getline(&item, fh);
 	if (!skip_prefix(item.buf, "timeout=", &p))
 		return error("client sent bogus timeout line: %s", item.buf);
 	*timeout = atoi(p);

credential-store.c

@@ -23,7 +23,7 @@ static int parse_credential_file(const char *fn,
 		return found_credential;
 	}
 
-	while (strbuf_getline_lf(&line, fh) != EOF) {
+	while (strbuf_getline(&line, fh) != EOF) {
 		credential_from_url(&entry, line.buf);
 		if (entry.username && entry.password &&
 		    credential_match(c, &entry)) {