Merge "Only print stack trace to Sytem.err when debug flag is set"

org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java

@@ -304,6 +304,7 @@ public abstract class FS {
 							}
 					} catch (IOException e) {
 						// Just print on stderr for debugging
+						if (debug)
 							e.printStackTrace(System.err);
 						gooblerFail.set(true);
 					}
@@ -311,6 +312,7 @@ public abstract class FS {
 						is.close();
 					} catch (IOException e) {
 						// Just print on stderr for debugging
+						if (debug)
 							e.printStackTrace(System.err);
 						gooblerFail.set(true);
 					}