Fix comment formatting for GrRenderTargetContext::drawArc

Change-Id: I23c946ff42964613a925b98c4ce5cf674b3b61a8
Reviewed-on: https://skia-review.googlesource.com/5705
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/include/gpu/GrRenderTargetContext.h b/include/gpu/GrRenderTargetContext.h
index afa1586..ac733cb 100644
--- a/include/gpu/GrRenderTargetContext.h
+++ b/include/gpu/GrRenderTargetContext.h
@@ -278,7 +278,7 @@
      * Draws a partial arc of an oval.
      *
      * @param paint         describes how to color pixels.
-     * @param GrGrAA          Controls whether the arc is antialiased.
+     * @param GrGrAA        Controls whether the arc is antialiased.
      * @param viewMatrix    transformation matrix.
      * @param oval          the bounding rect of the oval.
      * @param startAngle    starting angle in degrees.