templater: avoid recursive evaluation of string literals completely Changeset 3d8bfe2ecf6d (released with 2.8.1) fixed "recursively evaluate string literals as templates" problem (issue4103) by introducing "_evalifliteral()". But some parts in template expressions below are still processed by the combination of "compiletemplate()" and "runtemplate()", and may cause same problem unexpectedly. - 'init' and 'hang' of 'fill(text, width, init, hang)' - 'expr' of 'sub(pat, repl, expr)' - 'label' of 'label(label, expr)' This patch processes them by "_evalifliteral()" instead of the combination of "compiletemplate()" and "runtemplate()" to avoid recursive evaluation of string literals completely.