updating grammar for unknown statement

Change-Id: I0ddfb309d25e2725f94345fdeef6016b0b4a992c
diff --git a/runtime/pom.xml b/runtime/pom.xml
index 7ca9b7e..b2fbbf8 100644
--- a/runtime/pom.xml
+++ b/runtime/pom.xml
@@ -114,13 +114,20 @@
                         <configuration>
                             <target>
                                 <delete includeemptydirs="true">
-                                    <fileset dir="${project.build.outputDirectory}/org/onosproject/yang/gen" includes="**/*"/>
+                                    <fileset
+                                            dir="${project.build.outputDirectory}/org/onosproject/yang/gen"
+                                            includes="**/*"/>
                                 </delete>
                                 <delete includeemptydirs="true">
-                                    <fileset dir="${project.build.outputDirectory}/yang" includes="**/*"/>
+                                    <fileset
+                                            dir="${project.build.outputDirectory}/yang"
+                                            includes="**/*"/>
                                 </delete>
-                                <delete includeemptydirs="true" failonerror="false">
-                                    <fileset dir="${project.build.outputDirectory}/Temp" includes="**/*"/>
+                                <delete includeemptydirs="true"
+                                        failonerror="false">
+                                    <fileset
+                                            dir="${project.build.outputDirectory}/Temp"
+                                            includes="**/*"/>
                                 </delete>
                             </target>
                         </configuration>