Merge pull request #38104 from elipapa/zsh-completions-fix

Automatic merge from submit-queue

Fix zsh completion: unknown file attribute error

**What this PR does / why we need it**:
Fixes zsh completion.

Sourcing the file with `zsh` > 4 resulted in an `unknown file attribute`.
More details at http://stackoverflow.com/questions/37220495/zsh-unknown-file-attribute

pkg/kubectl/cmd/completion.go

@@ -271,6 +271,7 @@ fi
 __kubectl_convert_bash_to_zsh() {
 	sed \
 	-e 's/declare -F/whence -w/' \
+	-e 's/_get_comp_words_by_ref "\$@"/_get_comp_words_by_ref "\$*"/' \
 	-e 's/local \([a-zA-Z0-9_]*\)=/local \1; \1=/' \
 	-e 's/flags+=("\(--.*\)=")/flags+=("\1"); two_word_flags+=("\1")/' \
 	-e 's/must_have_one_flag+=("\(--.*\)=")/must_have_one_flag+=("\1")/' \