android: Enable debugging messages as the first thing we do.

Additionally log what we are trying to open - very useful for debugging
bootstrap problems ;-)

Change-Id: I942b144d97a57cbcb709b2d67029bfa09b339be2

android/experimental/LOAndroid3/src/java/org/libreoffice/LibreOfficeMainActivity.java

@@ -74,9 +74,11 @@ public class LibreOfficeMainActivity extends Activity {
         super.onCreate(savedInstanceState);
 
         try {
-            LibreOfficeKit.init(this);
+            // enable debugging messages as the first thing
             LibreOfficeKit.putenv("SAL_LOG=+WARN+INFO-INFO.legacy.osl");
 
+            LibreOfficeKit.init(this);
+
             setContentView(R.layout.activity_main);
 
             Log.w(LOGTAG, "zerdatime " + SystemClock.uptimeMillis() + " - onCreate");

sal/osl/unx/file.cxx

@@ -827,6 +827,8 @@ openFilePath( const char *cpFilePath, oslFileHandle* pHandle, sal_uInt32 uFlags,
     oslFileError eRet;
 
 #ifdef ANDROID
+    SAL_INFO("sal.file", "osl_openFile: " << cpFilePath);
+
     /* Opening a file from /assets read-only means
      * we should mmap it from the .apk file
      */