Add forgotton comma

Bug: skia:
Change-Id: Ic8d81bf343f2c37201ae60541065b7bfb615b150
Reviewed-on: https://skia-review.googlesource.com/c/163252
Reviewed-by: Kevin Lubick <kjlubick@google.com>
diff --git a/public.bzl b/public.bzl
index 93855d4..1e4992b 100644
--- a/public.bzl
+++ b/public.bzl
@@ -240,7 +240,7 @@
         "src/utils/win/**/*",
 
         # Exclude multiple definitions.
-        "src/core/SkPicture_none.cpp"
+        "src/core/SkPicture_none.cpp",
         "src/gpu/GrPathRendering_none.cpp",
         "src/gpu/ccpr/GrCoverageCountingPathRenderer_none.cpp",
         "src/gpu/gl/GrGLMakeNativeInterface_none.cpp",