Fix glGetShaderSource conformance
TRAC #11718
Signed-off-by: Daniel Koch

git-svn-id: https://angleproject.googlecode.com/svn/trunk@92 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/Shader.cpp b/src/libGLESv2/Shader.cpp
index aad124a..90ce10f 100644
--- a/src/libGLESv2/Shader.cpp
+++ b/src/libGLESv2/Shader.cpp
@@ -148,7 +148,7 @@
 
     if (mSource)
     {
-        while (index < bufSize - 1 && index < (int)strlen(mInfoLog))
+        while (index < bufSize - 1 && index < (int)strlen(mSource))
         {
             source[index] = mSource[index];
             index++;