epm-removerepo: check for ^rpm (full string)

bin/epm-removerepo

@@ -23,11 +23,12 @@ load_helper epm-sh-altlinux
 __epm_removerepo_alt_grepremove()
 {
 	local rl
-	if [ "$1" != "all" ] ; then
+	# ^rpm means full string
+	if [ "$1" = "all" ] || rhas "$1" "^rpm" ; then
+		rl="$1"
+	else
 		rl="$((quiet=1 epm repolist) 2>/dev/null | grep -E "$1")"
 		[ -z "$rl" ] && warning "Can't find '$1' in the repos (see '# epm repolist' output)" && return 1
-	else
-		rl="$1"
 	fi
 	echo "$rl" | while read rp ; do
 		# TODO: print removed lines