fix indentation in pom.xml

Change-Id: I1ce413e73a0fa2c93814c8bafa2295b297f785d1
Reviewed-on: https://asterix-gerrit.ics.uci.edu/710
Reviewed-by: Till Westmann <tillw@apache.org>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/pom.xml b/pom.xml
index 685e1be..e69ae24 100644
--- a/pom.xml
+++ b/pom.xml
@@ -245,9 +245,8 @@
         <connection>scm:git:https://github.com/apache/incubator-asterixdb</connection>
         <developerConnection>scm:git:ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb</developerConnection>
         <url>https://github.com/apache/incubator-asterixdb</url>
-
-      <tag>HEAD</tag>
-  </scm>
+        <tag>HEAD</tag>
+    </scm>
 
     <profiles>
         <profile>