[HUDI-676] Address issues towards removing use of WIP Disclaimer (#1386)

* rename DISCLAIMER-STANDARD TO DISCLAIMER

DISCLAIMER

@@ -0,0 +1,10 @@
+Apache Hudi (incubating) is an effort undergoing incubation
+at The Apache Software Foundation (ASF), sponsored by the Apache Incubator.
+
+Incubation is required of all newly accepted projects until a further review
+indicates that the infrastructure, communications, and decision making process
+have stabilized in a manner consistent with other successful ASF projects.
+
+While incubation status is not necessarily a reflection of the
+completeness or stability of the code, it does indicate that the
+project has yet to be fully endorsed by the ASF.

DISCLAIMER-WIP

@@ -1,26 +0,0 @@
-Apache Hudi (incubating) is an effort undergoing incubation 
-at The Apache Software Foundation (ASF), sponsored by the Apache Incubator. 
-
-Incubation is required of all newly accepted projects until a further review 
-indicates that the infrastructure, communications, and decision making process 
-have stabilized in a manner consistent with other successful ASF projects.
-
-While incubation status is not necessarily a reflection of the
-completeness or stability of the code, it does indicate that the
-project has yet to be fully endorsed by the ASF.
-
-Some of the incubating project's releases may not be fully compliant
-with ASF policy. For example, releases may have incomplete or
-un-reviewed licensing conditions. What follows is a list of known
-issues the project is currently aware of (note that this list, by
-definition, is likely to be incomplete): 
-
- * The LICENSE and NOTICE files may not be complete and will be fixed with the next release.
-
-If you are planning to incorporate this work into your
-product or project, please be aware that you will need to conduct a
-thorough licensing review to determine the overall implications of
-including this work. For the current status of this project through the Apache
-Incubator visit: 
-
-http://incubator.apache.org/projects/hudi.html

pom.xml

@@ -337,7 +337,7 @@
             </licenseFamilies>
             <excludes>
               <exclude>NOTICE</exclude>
-              <exclude>DISCLAIMER-WIP</exclude>
+              <exclude>DISCLAIMER</exclude>
               <exclude>**/.*</exclude>
               <exclude>**/*.json</exclude>
               <exclude>**/*.log</exclude>

scripts/release/validate_staged_release.sh

@@ -107,11 +107,11 @@ fi
 echo -e "\t\tNo Binary Files in Source Release? - [OK]\n"
 ### END: Binary Files Check
 
-### Checking for DISCLAIMER-WIP
-echo "Checking for DISCLAIMERi-WIP"
-disclaimerFile="./DISCLAIMER-WIP"
+### Checking for DISCLAIMER
+echo "Checking for DISCLAIMER"
+disclaimerFile="./DISCLAIMER"
 if [ ! -f "$disclaimerFile" ]; then
-  echo "DISCLAIMER-WIP file missing"
+  echo "DISCLAIMER file missing"
   exit -1
 fi
 echo -e "\t\tDISCLAIMER file exists ? [OK]\n"