Fix for bug # 118237. Removed shorPathBuf in thisApplication()

r=rdayal@netscape.com, sr=jaggernaut@netscape.com

mailnews/mapi/mapihook/src/nsMapiRegistryUtils.cpp

@@ -70,8 +70,7 @@ const char * nsMapiRegistryUtils::thisApplication()
         char buffer[MAX_PATH] = {0};
         DWORD len = ::GetModuleFileName(NULL, buffer, MAX_PATH);
         if (!len) return nsnull ; 
-        char shortPathBuf[MAX_PATH] = {0};
-        len = ::GetShortPathName(buffer, shortPathBuf, MAX_PATH);
+        len = ::GetShortPathName(buffer, buffer, MAX_PATH);
         if (!len) return nsnull ; 
         m_thisApp = buffer;
         ToUpperCase(m_thisApp);