Revert sdkman-use.sh to upstream/master

Author: helpermethod

src/main/bash/sdkman-use.sh

@@ -26,7 +26,11 @@ function __sdk_use() {
 
 	if [[ ! -d "${SDKMAN_CANDIDATES_DIR}/${candidate}/${version}" ]]; then
 		echo ""
-		__sdkman_echo_red "Stop! ${candidate} ${version} is not installed."
+		__sdkman_echo_red "Stop! Candidate version is not installed."
+		echo ""
+		__sdkman_echo_yellow "Tip: Run the following to install this version"
+		echo ""
+		__sdkman_echo_yellow "$ sdk install ${candidate} ${version}"
 		return 1
 	fi