apply Markus's patch (bug https://trac.osgeo.org/grass/ticket/172, merge from devbr6)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@37020 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.recode/read_rules.c

@@ -62,7 +62,7 @@ int read_rules(FILE * fp)
     for (line = 1;; line++) {
 	if (isatty(fileno(fp)))
 	    fprintf(stderr, "> ");
-	if (!fgets(buf, 1024, fp))
+	if (!G_getl2(buf, 1024, fp))
 	    return nrules;
 	buf[strlen(buf) - 1] = '\0';
 	for (n = 0; buf[n]; n++)