MAPREDUCE-7474. checkstyle: trailing spaces

Change-Id: Ic67f41449d1e46d9fb81c47012bb41d5fade84a9

Author: steveloughran

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/manifest_committer_architecture.md

@@ -279,7 +279,7 @@ The manifest committer assumes that the amount of data being stored in memory is
 because there is no longer the need to store an etag for every block of every
 file being committed.
 
-This assumption turned out to be *invalid*: 
+This assumption turned out not to hold for some jobs:
 [MAPREDUCE-7435. ManifestCommitter OOM on azure job](https://issues.apache.org/jira/browse/MAPREDUCE-7435)
 
 The strategy here was to read in all manifests and stream their entries to a local file, as Hadoop

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/output/committer/manifest/impl/UnreliableManifestStoreOperations.java

@@ -155,7 +155,6 @@ public UnreliableManifestStoreOperations(final ManifestStoreOperations wrappedOp
     this.wrappedOperations = wrappedOperations;
   }
 
-
   /**
    * Reset everything.
    */