PacketLineIn: Suppress comparison warnings for END and DELIM

Reference comparison is intentional. The END and DELIM string
constants are used as sentinels and will always be the same
instances.

Suppress both ReferenceEquality and StringEquality warnings.

Change-Id: I4ce0495702c56b3911f42f26c2f81d28073cbe19
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/transport/PacketLineIn.java

@@ -259,6 +259,7 @@ public class PacketLineIn {
 	 * @return true if the given string is {@link #DELIM}, otherwise false.
 	 * @since 5.4
 	 */
+	@SuppressWarnings({ "ReferenceEquality", "StringEquality" })
 	public static boolean isDelimiter(String s) {
 		return s == DELIM;
 	}
@@ -293,6 +294,7 @@ public class PacketLineIn {
 	 * @return true if the given string is {@link #END}, otherwise false.
 	 * @since 5.4
 	 */
+	@SuppressWarnings({ "ReferenceEquality", "StringEquality" })
 	public static boolean isEnd(String s) {
 		return s == END;
 	}