Bug 544977 - Change default for missing exports back to ignore

OSGi experts advice that this is the correct setting.

Change-Id: Ic529080c3d7aab6d15c77c423a348134670f4acc
Signed-off-by: Lars Vogel <Lars.Vogel@vogella.com>
diff --git a/ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/PreferenceInitializer.java b/ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/PreferenceInitializer.java
index 46b7de5..dad5813 100644
--- a/ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/PreferenceInitializer.java
+++ b/ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/PreferenceInitializer.java
@@ -53,7 +53,7 @@
 		prefs.putInt(CompilerFlags.P_BUILD_ENCODINGS, CompilerFlags.IGNORE);
 
 		prefs.putInt(CompilerFlags.P_INCOMPATIBLE_ENV, CompilerFlags.WARNING);
-		prefs.putInt(CompilerFlags.P_MISSING_EXPORT_PKGS, CompilerFlags.WARNING);
+		prefs.putInt(CompilerFlags.P_MISSING_EXPORT_PKGS, CompilerFlags.IGNORE);
 
 		prefs.putInt(CompilerFlags.P_MISSING_VERSION_EXP_PKG, CompilerFlags.IGNORE);
 		prefs.putInt(CompilerFlags.P_MISSING_VERSION_IMP_PKG, CompilerFlags.IGNORE);