[region] mark do_test static

diff --git a/src/libply/ply-region.c b/src/libply/ply-region.c
index 938be973b2f0a9179a29a825889e69fbe74f77b4..8c2e82e6fae2e6b721130dd35c1a982d31dc3f7b 100644 (file)
--- a/src/libply/ply-region.c
+++ b/src/libply/ply-region.c
@@ -498,7 +498,7 @@ cover_with_rect(char             cover[COVER_SIZE][COVER_SIZE],
     }
 }
 
-int
+static int
 do_test (void)
 {
   ply_rectangle_t rectangle;