[spotbugs] silence warnings for intended use of == to compare strings

Change-Id: Ib6967ad4deb5cf233d1f1d714cd094da5fad48e3
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/findBugs/FindBugsExcludeFilter.xml

@@ -25,8 +25,26 @@
 	   <!-- Silence the construction of our magic String instance.
 	     -->
      <Match>
-	 <Class name="org.eclipse.jgit.lib.Config" />
-	 <Bug pattern="DM_STRING_VOID_CTOR"/>
+       <Class name="org.eclipse.jgit.lib.Config" />
+       <Bug pattern="DM_STRING_VOID_CTOR"/>
+     </Match>
+
+     <Match>
+       <Class name="org.eclipse.jgit.lib.Config" />
+       <Method name="isMissing" />
+       <Bug pattern="ES_COMPARING_PARAMETER_STRING_WITH_EQ"/>
+     </Match>
+
+     <Match>
+       <Class name="org.eclipse.jgit.transport.PacketLineIn" />
+       <Method name="isDelimiter" />
+       <Bug pattern="ES_COMPARING_PARAMETER_STRING_WITH_EQ"/>
+     </Match>
+
+     <Match>
+       <Class name="org.eclipse.jgit.transport.PacketLineIn" />
+       <Method name="isEnd" />
+       <Bug pattern="ES_COMPARING_PARAMETER_STRING_WITH_EQ"/>
      </Match>
 
      <!-- Silence comparison of string by == or !=.  This class is built