Prefer left-hand, right-hand

Author: coke

t/15-word-variants.rakutest

@@ -27,6 +27,7 @@ my %variants = %(
     "environment variable" => rx:i/ << env(ironmental)? [\s+|\-] variable/,
     filehandle => rx:i/ << file [\s+|\-] handle /,
     filesystem => rx:i/ << file [\s+|\-] system /,
+    left-hand => rx:i/ << left [\s+] hand /,
     lookahead  => rx:i/ << look \- ahead /,
     lookbehind => rx:i/ << look [\s+|\-] behind /,
     lowercase  => rx:i/ << lower [\s+|\-] case /,
@@ -39,6 +40,7 @@ my %variants = %(
     NYI        => rx:i/ << niy /,
     parameterization => rx:i/ << parametrization >> /,
     precompil => rx:i/ << pre [\s+|\-] compil /,
+    right-hand => rx:i/ << right [\s+] hand /,
     runtime    => rx:i/ << run [\s+|\-] time /,
     semicolon => rx:i/ << semi [\s+|\-] colon /,
     shorthand  => rx:i/ << short [\s+|\-] hand /,