Fixing search_env_path windows drive letter.

radixcore/tests/tstSystem.cc

@@ -213,7 +213,7 @@ TEST(System, SearchEnvPath)
 
 #ifdef _WIN32
   app     = "where.exe";
-  blessed = "c:\\WINDOWS\\System32\\where.exe";
+  blessed = "C:\\WINDOWS\\System32\\where.exe";
 #elif __APPLE__
   app     = "ls";
   blessed = "/bin/ls";