[Build] Fix definition of pgp-secretKeys property to fix pgp signing

Jenkinsfile

@@ -28,7 +28,7 @@ pipeline {
 					sh '''#!/bin/bash -x
 						mavenArgs="clean verify --batch-mode -Dmaven.test.failure.ignore=true -Dtycho.p2.baselineMode=failCommon"
 						if [[ ${BRANCH_NAME} == master ]] || [[ ${BRANCH_NAME} =~ m2e-[0-9]+\\.[0-9]+\\.x ]]; then
-							mvn ${mavenArgs} -Peclipse-sign,its -DDtycho.pgp.signer.bc.secretKeys="${KEYRING}" -Dgpg.passphrase="${KEYRING_PASSPHRASE}"
+							mvn ${mavenArgs} -Peclipse-sign,its -Dtycho.pgp.signer.bc.secretKeys="${KEYRING}" -Dgpg.passphrase="${KEYRING_PASSPHRASE}"
 						else
 							# Clear signing environment variables for PRs
 							export KEYRING='EMPTY'