Fix a typo in r592.  (I developped on Windows and typed in on Mac and submit).

BUG=135
TEST=build fine

TBR=kbr@chromium.org
Review URL: http://codereview.appspot.com/4285066

git-svn-id: https://angleproject.googlecode.com/svn/trunk@593 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/Program.cpp b/src/libGLESv2/Program.cpp
index 524901b..8ed4d41 100644
--- a/src/libGLESv2/Program.cpp
+++ b/src/libGLESv2/Program.cpp
@@ -2743,7 +2743,7 @@
         if (!mUniforms[uniformIndex]->name.empty() && mUniforms[uniformIndex]->name.substr(0, 3) != "dx_")
         {
             int length = (int)(undecorate(mUniforms[uniformIndex]->name).length() + 1);
-            if (mUniforms[uniform]->arraySize != 1)
+            if (mUniforms[uniformIndex]->arraySize != 1)
             {
                 length += 3;  // Counting in "[0]".
             }