Rewrite FS fstab flag processing

* If 'ro' fsflag detected, set Mount_Read_Only = true
* Only output human readable Mount_Options to log
* Match fsflags identically (not just first n chars) since there are
  no fs_flags which take arguments
* Match new processing method introduced in TW fstab flag processing

Change-Id: Iefdb76016be90a131b0d627d0cd3f18d2eb1a008
diff --git a/partitionmanager.cpp b/partitionmanager.cpp
index c2ef5f5..95d2520 100644
--- a/partitionmanager.cpp
+++ b/partitionmanager.cpp
@@ -326,7 +326,7 @@
 	string back_meth = Part->Backup_Method_By_Name();
 	printf("   Backup_Method: %s\n", back_meth.c_str());
 	if (Part->Mount_Flags || !Part->Mount_Options.empty())
-		printf("   Mount_Flags=0x%8x, Mount_Options=%s\n", Part->Mount_Flags, Part->Mount_Options.c_str());
+		printf("   Mount_Options: %s\n", Part->Mount_Options.c_str());
 	if (Part->MTP_Storage_ID)
 		printf("   MTP_Storage_ID: %i\n", Part->MTP_Storage_ID);
 	printf("\n");