loplugin:conststringvar (clang-cl)

Change-Id: Icb0e32716ae58886912a1a1c7c50e66f30256227
Reviewed-on: https://gerrit.libreoffice.org/46202Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

xmlsecurity/source/dialogs/digitalsignaturesdialog.cxx

@@ -474,7 +474,7 @@ IMPL_STATIC_LINK_NOARG(DigitalSignaturesDialog, CertMgrButtonHdl, Button*, void)
     // FIXME: perhaps poke GpgME for uiserver, and hope it returns something useful?
     const OUString aGUIServers[] = { OUString("kleopatra.exe"), OUString("launch-gpa.exe"), OUString("gpa.exe"),
                                      OUString("bin\\kleopatra.exe"), OUString("bin\\launch-gpa.exe"), OUString("bin\\gpa.exe") };
-    const char* cPath = "C:\\Program Files (x86)\\GNU\\GnuPG";
+    const char* const cPath = "C:\\Program Files (x86)\\GNU\\GnuPG";
 #else
     const OUString aGUIServers[] = { OUString("kleopatra"), OUString("seahorse"),  OUString("gpa"), OUString("kgpg") };
     const char* cPath = getenv("PATH");