HADOOP-16985. Handle release package related issues (#1957)

(cherry picked from commit 4d24d99e85)

dev-support/bin/create-release

@@ -639,10 +639,12 @@ function signartifacts
 
   big_console_header "Signing the release"
 
-  for i in ${ARTIFACTS_DIR}/*; do
+  run cd "${ARTIFACTS_DIR}"
+  for i in *; do
     ${GPG} --use-agent --armor --output "${i}.asc" --detach-sig "${i}"
     sha512sum --tag "${i}" > "${i}.sha512"
   done
+  run cd "${BASEDIR}"
 
   if [[ "${ASFRELEASE}" = true ]]; then
     echo "Fetching the Apache Hadoop KEYS file..."

hadoop-assemblies/src/main/resources/assemblies/hadoop-src.xml

@@ -50,6 +50,7 @@
         <exclude>**/build/**</exclude>
         <exclude>**/file:/**</exclude>
         <exclude>**/SecurityAuth.audit*</exclude>
+        <exclude>patchprocess/**</exclude>
       </excludes>
     </fileSet>
   </fileSets>