portutil.tcl, in {{{[command_string]}}}:  * Removed two useless global imports.  * Now uses {{{[append cmdstring "..."]}}} instead of {{{[set stringcmd "$stringcmd ..."]}}}, which is faster, as said in append(n) manpage.
portutil.tcl, in {{{[command_string]}}}:
 * Removed two useless global imports.
 * Now uses {{{[append cmdstring "..."]}}} instead of {{{[set stringcmd "$stringcmd ..."]}}}, which is faster, as said in append(n) manpage.

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@31353 d073be05-634f-4543-b044-5fe20cf6d1d6

danchr/macports-base,macports/macports-base,neverpanic/macports-base,danchr/macports-base,macports/macports-base,neverpanic/macports-base