Add a script to lint the translations with Dennis.

Two of our printf calls are not compatible with python-format and will
be ignored until Dennis supports the corresponding formats. Also removed
meaningless enclosing characters that were wrongly considered HTML.

Reviewed By: leper
Differential Revision: https://code.wildfiregames.com/D214
This was SVN commit r19669.

source/gui/scripting/ScriptFunctions.cpp

@@ -828,6 +828,7 @@ std::wstring GetBuildTimestamp(ScriptInterface::CxPrivate* UNUSED(pCxPrivate), i
 		else
 		{
 			// Translation: First item is a date and time, item between parenthesis is the Subversion revision number of the current build.
+			// dennis-ignore: *
 			sprintf_s(buf, ARRAY_SIZE(buf), g_L10n.Translate("%s (%ls)").c_str(), dateTimeString.c_str(), svn_revision);
 		}
 	}