HDFS-14433. Remove the extra empty space in the DataStreamer logging.

[lys0716]

Signed-off-by: Eason Lu luystu@gmail.com

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	21	Docker mode activated.
		_ Prechecks _
+1	@author	0	The patch does not contain any @author tags.
-1	test4tests	0	The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
		_ trunk Compile Tests _
+1	mvninstall	1144	trunk passed
+1	compile	40	trunk passed
+1	checkstyle	23	trunk passed
+1	mvnsite	44	trunk passed
+1	shadedclient	776	branch has no errors when building and testing our client artifacts.
+1	findbugs	105	trunk passed
+1	javadoc	29	trunk passed
		_ Patch Compile Tests _
+1	mvninstall	39	the patch passed
+1	compile	35	the patch passed
+1	javac	35	the patch passed
+1	checkstyle	17	the patch passed
+1	mvnsite	40	the patch passed
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedclient	813	patch has no errors when building and testing our client artifacts.
+1	findbugs	108	the patch passed
+1	javadoc	26	the patch passed
		_ Other Tests _
+1	unit	106	hadoop-hdfs-client in the patch passed.
+1	asflicense	25	The patch does not generate ASF License warnings.
		3473

Subsystem	Report/Notes
Docker	Client=17.05.0-ce Server=17.05.0-ce base: https://builds.apache.org/job/hadoop-multibranch/job/PR-747/1/artifact/out/Dockerfile
GITHUB PR	#747
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle
uname	Linux b071073115d2 4.4.0-143-generic #169~14.04.2-Ubuntu SMP Wed Feb 13 15:00:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/hadoop.sh
git revision	trunk / 04c0437
maven	version: Apache Maven 3.3.9
Default Java	1.8.0_191
findbugs	v3.1.0-RC1
Test Results	https://builds.apache.org/job/hadoop-multibranch/job/PR-747/1/testReport/
Max. process+thread count	336 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs-client U: hadoop-hdfs-project/hadoop-hdfs-client
Console output	https://builds.apache.org/job/hadoop-multibranch/job/PR-747/1/console
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[shwetayakkali]

LGTM

+1 (non-binding)

[xiaoyuyao]

LGTM, +1. I will merge/commit it shortly.