Rename helper function in bash completion for consistency

Signed-off-by: Harald Albers <github@albersweb.de>

contrib/completion/bash/docker

@@ -435,10 +435,10 @@ __docker_append_to_completions() {
 	COMPREPLY=( ${COMPREPLY[@]/%/"$1"} )
 }
 
-# __docker_is_experimental tests whether the currently configured Docker daemon
-# runs in experimental mode. If so, the function exits with 0 (true).
+# __docker_daemon_is_experimental tests whether the currently configured Docker
+# daemon runs in experimental mode. If so, the function exits with 0 (true).
 # Otherwise, or if the result cannot be determined, the exit value is 1 (false).
-__docker_is_experimental() {
+__docker_daemon_is_experimental() {
 	[ "$(__docker_q version -f '{{.Server.Experimental}}')" = "true" ]
 }
 
@@ -906,7 +906,7 @@ _docker_docker() {
 		*)
 			local counter=$( __docker_pos_first_nonflag "$(__docker_to_extglob "$global_options_with_args")" )
 			if [ $cword -eq $counter ]; then
-				__docker_is_experimental && commands+=(${experimental_commands[*]})
+				__docker_daemon_is_experimental && commands+=(${experimental_commands[*]})
 				COMPREPLY=( $( compgen -W "${commands[*]} help" -- "$cur" ) )
 			fi
 			;;
@@ -1955,7 +1955,7 @@ _docker_daemon() {
 }
 
 _docker_deploy() {
-	__docker_is_experimental && _docker_stack_deploy
+	__docker_daemon_is_experimental && _docker_stack_deploy
 }
 
 _docker_diff() {
@@ -2052,7 +2052,7 @@ _docker_image_build() {
 		--quiet -q
 		--rm
 	"
-	__docker_is_experimental && boolean_options+="--squash"
+	__docker_daemon_is_experimental && boolean_options+="--squash"
 
 	local all_options="$options_with_args $boolean_options"
 
@@ -3633,7 +3633,7 @@ _docker_stack() {
 _docker_stack_deploy() {
 	case "$prev" in
 		--bundle-file)
-			if __docker_is_experimental ; then
+			if __docker_daemon_is_experimental ; then
 				_filedir dab
 				return
 			fi
@@ -3647,7 +3647,7 @@ _docker_stack_deploy() {
 	case "$cur" in
 		-*)
 			local options="--compose-file -c --help --with-registry-auth"
-			__docker_is_experimental && options+=" --bundle-file"
+			__docker_daemon_is_experimental && options+=" --bundle-file"
 			COMPREPLY=( $( compgen -W "$options" -- "$cur" ) )
 			;;
 	esac