BasePackFetchConnection: Prefer boolean operators over logical operators in comparisons

Using the | and & operators in boolean conditions results in a warning
from Error Prone:

  [ShortCircuitBoolean]
  Prefer the short-circuiting boolean operators && and || to & and |.
  see https://errorprone.info/bugpattern/ShortCircuitBoolean

Change-Id: I6cccca3fdd28bf93b302a9b8a66e68ac912cb60d
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

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

@@ -670,7 +670,7 @@ public abstract class BasePackFetchConnection extends BasePackConnection
 				}
 			}
 
-			if (noDone & receivedReady) {
+			if (noDone && receivedReady) {
 				break SEND_HAVES;
 			}
 			if (statelessRPC) {