Auto merge of #6462 - pavel-zhigulin:fix_issue_��#6461, r=ehuss

[issue#6461] Fix cargo commands list

Fixes #6461 -  cargo autocompletion script

Author: bors

src/etc/cargo.bashcomp.sh

@@ -120,7 +120,7 @@ _cargo()
 } &&
 complete -F _cargo cargo
 
-__cargo_commands=$(cargo --list 2>/dev/null | tail -n +2)
+__cargo_commands=$(cargo --list 2>/dev/null | awk 'NR>1 {print $1}')
 
 _locate_manifest(){
 	local manifest=`cargo locate-project 2>/dev/null`