SWDEV-301289 - Correctly reset optind when using getopt()

optind's starting value is 1 and it needs to be reset to 1 after each
getopt() invocation. Resetting it to 0 will cause getopt() to
reinitialize its internal state. This is only needed for some corner
cases. In our current usage, we should be resetting it to 1.

Change-Id: I68da7e41ee8b83b275e2a7bd660c13af569769f1


[ROCm/clr commit: 3d82092632]

projects/clr/opencl/tests/ocltst/env/ocltst.cpp

@@ -1459,7 +1459,7 @@ int main(int argc, char** argv) {
   unsigned int platform = 0;
   platform = parseCommandLineForPlatform(argc, argv);
   // reset optind as we really didn't parse the full command line
-  optind = 0;
+  optind = 1;
   App app(platform);
 #ifdef ATI_OS_WIN
   // this function is registers windows service routine when ocltst is launched