Fixed typo in preferences: NonByDefault -> NonNullByDefault

Change-Id: I6ef5fbdb57e7cba010ad23cb3f6af02891e7fe78
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>

org.eclipse.jgit/.settings/org.eclipse.jdt.core.prefs

@@ -2,7 +2,7 @@ eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.annotation.inheritNullAnnotations=enabled
 org.eclipse.jdt.core.compiler.annotation.missingNonNullByDefaultAnnotation=ignore
 org.eclipse.jdt.core.compiler.annotation.nonnull=org.eclipse.jgit.annotations.NonNull
-org.eclipse.jdt.core.compiler.annotation.nonnullbydefault=org.eclipse.jgit.annotations.NonByDefault
+org.eclipse.jdt.core.compiler.annotation.nonnullbydefault=org.eclipse.jgit.annotations.NonNullByDefault
 org.eclipse.jdt.core.compiler.annotation.nullable=org.eclipse.jgit.annotations.Nullable
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=enabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled