gl-renderer: Fix comment typo
diff --git a/src/gl-renderer.c b/src/gl-renderer.c
index 0ee2075..cb08344 100644
--- a/src/gl-renderer.c
+++ b/src/gl-renderer.c
@@ -626,7 +626,7 @@
* coordinates. texture_region() will iterate over all pairs of
* rectangles from both regions, compute the intersection
* polygon for each pair, and store it as a triangle fan if
- * it has a non-zero area (at least 3 vertices1, actually).
+ * it has a non-zero area (at least 3 vertices, actually).
*/
nfans = texture_region(ev, region, surf_region);