fixed quoting on build fail report

ci/Jenkinsfile

@@ -146,7 +146,7 @@ pipeline {
                                               source ${HOMEgfs}/workflow/gw_setup.sh
                                               ${HOMEgfs}/ci/scripts/utils/publish_logs.py --file ${error_logs} --gist PR_BUILD_${env.CHANGE_ID}
                                             """, returnStdout: true).trim()
-                                            sh(script:  """${GH} pr comment ${env.CHANGE_ID} --repo ${repo_url} --body "Build **FAILED** on **${Machine}** in Build# ${env.BUILD_NUMBER} with error logs:\n\\`\\`\\`\n${error_logs_message}\\`\\`\\`\n\nFollow link here to view the contents of the above file(s): [(link)](${gist_url})" """)
+                                            sh(script:  """${GH} pr comment ${env.CHANGE_ID} --repo ${repo_url} --body 'Build **FAILED** on **${Machine}** in Build# ${env.BUILD_NUMBER} with error logs:\n\\`\\`\\`\n${error_logs_message}\\`\\`\\`\n\nFollow link here to view the contents of the above file(s): [(link)](${gist_url})' """)
                                         } catch (Exception error_comment) {
                                             echo "Failed to comment on PR: ${error_comment.getMessage()}"
                                         }