Fix bug in 'F' mode for gzopen().
diff --git a/gzlib.c b/gzlib.c
index b021372..c10fabb 100644
--- a/gzlib.c
+++ b/gzlib.c
@@ -162,8 +162,10 @@
                 break;
             case 'F':
                 state->strategy = Z_FIXED;
+                break;
             case 'T':
                 state->direct = 1;
+                break;
             default:        /* could consider as an error, but just ignore */
                 ;
             }