Fix a couple bugs introduced by last commit

Fix a couple bugs introduced by last commit

Author: zou000

themes/powerline-multiline/powerline-multiline.base.bash

@@ -75,7 +75,7 @@ function __powerline_prompt_command() {
 
 	## left prompt ##
 	# shellcheck disable=SC2068 # intended behavior
-	for segment in ${POWERLINE_PROMPT[@]-"user_info" "scm" "python_venv" "ruby" "node" "cwd"}; do
+	for segment in ${POWERLINE_LEFT_PROMPT[@]-"user_info" "scm" "python_venv" "ruby" "node" "cwd"}; do
 		info="$("__powerline_${segment}_prompt")"
 		if [[ -n "${info}" ]]; then
 			__powerline_left_segment "${info}"
@@ -90,7 +90,7 @@ function __powerline_prompt_command() {
 	# but when part of the prompt exists within that segment, we instead match the foreground color.
 	prompt_color="$(set_color "${LAST_SEGMENT_COLOR?}" -)"
 	if [[ -n "${LEFT_PROMPT:-}" && -n "${POWERLINE_LEFT_LAST_SEGMENT_END_CHAR:-}" ]]; then
-		LEFT_PROMPT+="$(set_color - "${LAST_SEGMENT_COLOR?}")${POWERLINE_LEFT_LAST_SEGMENT_END_CHAR}"
+		LEFT_PROMPT+="$(set_color "${LAST_SEGMENT_COLOR?}" -)${POWERLINE_LEFT_LAST_SEGMENT_END_CHAR}"
 		prompt_color="${normal?}"
 	fi