[MINOR][DOCS] Add proper periods and spaces for CLI help messages and `config` doc.

## What changes were proposed in this pull request?

This PR adds some proper periods and spaces to Spark CLI help messages and SQL/YARN conf docs for consistency.

## How was this patch tested?

Manual.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #11848 from dongjoon-hyun/add_proper_period_and_space.

1 files changed, 12 insertions, 12 deletions

diff --git a/sql/core/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala b/sql/core/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
index 473cde56fd..9e0878a514 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
@@ -210,11 +210,11 @@ object SQLConf {
 
   val ALLOW_MULTIPLE_CONTEXTS = booleanConf("spark.sql.allowMultipleContexts",
     defaultValue = Some(true),
-    doc = "When set to true, creating multiple SQLContexts/HiveContexts is allowed." +
+    doc = "When set to true, creating multiple SQLContexts/HiveContexts is allowed. " +
       "When set to false, only one SQLContext/HiveContext is allowed to be created " +
       "through the constructor (new SQLContexts/HiveContexts created through newSession " +
-      "method is allowed). Please note that this conf needs to be set in Spark Conf. Once" +
-      "a SQLContext/HiveContext has been created, changing the value of this conf will not" +
+      "method is allowed). Please note that this conf needs to be set in Spark Conf. Once " +
+      "a SQLContext/HiveContext has been created, changing the value of this conf will not " +
       "have effect.",
     isPublic = true)
 
@@ -238,7 +238,7 @@ object SQLConf {
 
   val PREFER_SORTMERGEJOIN = booleanConf("spark.sql.join.preferSortMergeJoin",
       defaultValue = Some(true),
-      doc = "When true, prefer sort merge join over shuffle hash join",
+      doc = "When true, prefer sort merge join over shuffle hash join.",
       isPublic = false)
 
   val AUTO_BROADCASTJOIN_THRESHOLD = intConf("spark.sql.autoBroadcastJoinThreshold",
@@ -252,8 +252,8 @@ object SQLConf {
     "spark.sql.defaultSizeInBytes",
     doc = "The default table size used in query planning. By default, it is set to a larger " +
       "value than `spark.sql.autoBroadcastJoinThreshold` to be more conservative. That is to say " +
-      "by default the optimizer will not choose to broadcast a table unless it knows for sure its" +
-      "size is small enough.",
+      "by default the optimizer will not choose to broadcast a table unless it knows for sure " +
+      "its size is small enough.",
     isPublic = false)
 
   val SHUFFLE_PARTITIONS = intConf("spark.sql.shuffle.partitions",
@@ -275,7 +275,7 @@ object SQLConf {
       doc = "The advisory minimal number of post-shuffle partitions provided to " +
         "ExchangeCoordinator. This setting is used in our test to make sure we " +
         "have enough parallelism to expose issues that will not be exposed with a " +
-        "single partition. When the value is a non-positive value, this setting will" +
+        "single partition. When the value is a non-positive value, this setting will " +
         "not be provided to ExchangeCoordinator.",
       isPublic = false)
 
@@ -391,7 +391,7 @@ object SQLConf {
 
   // This is only used for the thriftserver
   val THRIFTSERVER_POOL = stringConf("spark.sql.thriftserver.scheduler.pool",
-    doc = "Set a Fair Scheduler pool for a JDBC client session")
+    doc = "Set a Fair Scheduler pool for a JDBC client session.")
 
   val THRIFTSERVER_UI_STATEMENT_LIMIT = intConf("spark.sql.thriftserver.ui.retainedStatements",
     defaultValue = Some(200),
@@ -433,7 +433,7 @@ object SQLConf {
 
   val BUCKETING_ENABLED = booleanConf("spark.sql.sources.bucketing.enabled",
     defaultValue = Some(true),
-    doc = "When false, we will treat bucketed table as normal table")
+    doc = "When false, we will treat bucketed table as normal table.")
 
   // The output committer class used by HadoopFsRelation. The specified class needs to be a
   // subclass of org.apache.hadoop.mapreduce.OutputCommitter.
@@ -482,7 +482,7 @@ object SQLConf {
   val RUN_SQL_ON_FILES = booleanConf("spark.sql.runSQLOnFiles",
     defaultValue = Some(true),
     isPublic = false,
-    doc = "When true, we could use `datasource`.`path` as table in SQL query"
+    doc = "When true, we could use `datasource`.`path` as table in SQL query."
   )
 
   val PARSER_SUPPORT_QUOTEDID = booleanConf("spark.sql.parser.supportQuotedIdentifiers",
@@ -501,7 +501,7 @@ object SQLConf {
   val WHOLESTAGE_CODEGEN_ENABLED = booleanConf("spark.sql.codegen.wholeStage",
     defaultValue = Some(true),
     doc = "When true, the whole stage (of multiple operators) will be compiled into single java" +
-      " method",
+      " method.",
     isPublic = false)
 
   val FILES_MAX_PARTITION_BYTES = longConf("spark.sql.files.maxPartitionBytes",
@@ -511,7 +511,7 @@ object SQLConf {
 
   val EXCHANGE_REUSE_ENABLED = booleanConf("spark.sql.exchange.reuse",
     defaultValue = Some(true),
-    doc = "When true, the planner will try to find out duplicated exchanges and re-use them",
+    doc = "When true, the planner will try to find out duplicated exchanges and re-use them.",
     isPublic = false)
 
   object Deprecated {