Use encoded x3a to represent colon in bash

Part of microsoft#181934

Author: Tyriar

src/vs/workbench/contrib/terminal/browser/media/shellIntegration-bash.sh

@@ -50,7 +50,8 @@ if [ -n "$VSCODE_ENV_REPLACE" ]; then
 	IFS=':' read -ra ADDR <<< "$VSCODE_ENV_REPLACE"
 	for ITEM in "${ADDR[@]}"; do
 		VARNAME="$(echo $ITEM | cut -d "=" -f 1)"
-		VALUE="$(echo $ITEM | cut -d "=" -f 2)"
+		# Use -e to encoded expand colons and other sequences
+		VALUE="$(echo -e "$ITEM" | cut -d "=" -f 2)"
 		export $VARNAME="$VALUE"
 	done
 	builtin unset VSCODE_ENV_REPLACE
@@ -59,7 +60,8 @@ if [ -n "$VSCODE_ENV_PREPEND" ]; then
 	IFS=':' read -ra ADDR <<< "$VSCODE_ENV_PREPEND"
 	for ITEM in "${ADDR[@]}"; do
 		VARNAME="$(echo $ITEM | cut -d "=" -f 1)"
-		VALUE="$(echo $ITEM | cut -d "=" -f 2)"
+		# Use -e to encoded expand colons and other sequences
+		VALUE="$(echo -e "$ITEM" | cut -d "=" -f 2)"
 		export $VARNAME="$VALUE${!VARNAME}"
 	done
 	builtin unset VSCODE_ENV_PREPEND
@@ -68,7 +70,8 @@ if [ -n "$VSCODE_ENV_APPEND" ]; then
 	IFS=':' read -ra ADDR <<< "$VSCODE_ENV_APPEND"
 	for ITEM in "${ADDR[@]}"; do
 		VARNAME="$(echo $ITEM | cut -d "=" -f 1)"
-		VALUE="$(echo $ITEM | cut -d "=" -f 2)"
+		# Use -e to encoded expand colons and other sequences
+		VALUE="$(echo -e "$ITEM" | cut -d "=" -f 2)"
 		export $VARNAME="${!VARNAME}$VALUE"
 	done
 	builtin unset VSCODE_ENV_APPEND