Remove calls to printStackTrace in catch blocks

Change-Id: I7a4179f10a4841e80b6546e1e7662cab71eac5e9

org.eclipse.jgit/src/org/eclipse/jgit/ignore/IgnoreRule.java

 			try {
 				matcher = new FileNameMatcher(pattern, Character.valueOf('/'));
 			} catch (InvalidPatternException e) {
-				e.printStackTrace();
+				// Ignore pattern exceptions
 			}
 		}
 	}

org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java

 				// Can't decide whether unmerged paths exists. Return
 				// MERGING state to be on the safe side (in state MERGING
 				// you are not allow to do anything)
-				e.printStackTrace();
 			}
 			return RepositoryState.MERGING;
 		}
 				}
 			} catch (IOException e) {
 				// fall through to CHERRY_PICKING
-				e.printStackTrace();
 			}
 
 			return RepositoryState.CHERRY_PICKING;

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

 			public void run() {
 				try {
 					dc.execute(s);
-				} catch (RepositoryNotFoundException e) {
-					// Ignored. Client cannot use this repository.
 				} catch (ServiceNotEnabledException e) {
 					// Ignored. Client cannot use this repository.
 				} catch (ServiceNotAuthorizedException e) {
 					// Ignored. Client cannot use this repository.
 				} catch (IOException e) {
 					// Ignore unexpected IO exceptions from clients
-					e.printStackTrace();
 				} finally {
 					try {
 						s.getInputStream().close();