Squashed commit of the following:

commit c5a0d0f7394aa742fa336fff7e7c1d3049761868
Merge: 8c4991ba3e f8ff8c8760
Author: William Cheng <wing328hk@gmail.com>
Date:   Tue Aug 17 18:28:12 2021 +0800

    Merge branch 'mustache-linting' of https://github.com/NathanBaulch/openapi-generator into NathanBaulch-mustache-linting

commit f8ff8c8760
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 14:12:47 2021 +1000

    Reorder tags that handle missing values

commit f5d8a33709
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 14:08:59 2021 +1000

    Use dot notation where possible

commit 493d14921e
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 14:10:49 2021 +1000

    Remove empty tags

commit 32480dc53f
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 10:41:58 2021 +1000

    Remove redundant sections

commit a8edabd722
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Wed Aug 4 22:02:22 2021 +1000

    Trim extra EOF new lines

commit e89bd7458e
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Wed Aug 4 21:59:26 2021 +1000

    Trim trailing whitespace

samples/client/petstore/java/native/.travis.yml

@@ -12,5 +12,5 @@ script:
   - mvn test
   # uncomment below to test using gradle
   # - gradle test
-  # uncomment below to test using sbt 
+  # uncomment below to test using sbt
   # - sbt test

samples/client/petstore/java/native/git_push.sh

@@ -55,4 +55,3 @@ git pull origin master
 # Pushes (Forces) the changes in the local repository up to the remote repository
 echo "Git pushing to https://${git_host}/${git_user_id}/${git_repo_id}.git"
 git push origin master 2>&1 | grep -v 'To https'
-

samples/client/petstore/java/native/src/main/java/org/openapitools/client/ApiClient.java

@@ -378,7 +378,7 @@ public class ApiClient {
     this.readTimeout = readTimeout;
     return this;
   }
-  
+
   /**
    * Get the read timeout that was set.
    *