https://bugzilla.tianocore.org/show_bug.cgi?id=1069

Undo changes from following commit:

https://github.com/tianocore/edk2/commit/83964ebc5e74549d6efc7134af19150a0b2079aa

Change the open mode for the output file from 'wb' to 'w' so the
output file is written as a text file and not a binary file.

This resolves the issue where the text file was not writable from
Python 3.x and also removes b'' from output file when the string
was encoded as a bytearray.

Cc: YanYan Sun <yanyan.sun@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
---
 BaseTools/Scripts/BinToPcd.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/BaseTools/Scripts/BinToPcd.py b/BaseTools/Scripts/BinToPcd.py
index 1495a36933..316cc6117f 100644
--- a/BaseTools/Scripts/BinToPcd.py
+++ b/BaseTools/Scripts/BinToPcd.py
@@ -70,8 +70,7 @@ if __name__ == '__main__':
         #
         # Return a PCD value of the form '{0x01, 0x02, ...}' along with the PCD length in bytes
         #
-        PcdValue = '{' + ', '.join (['0x{Byte:02X}'.format (Byte = Item) for Item in Buffer]) + '}'
-        return PcdValue.encode (), len (Buffer)
+        return '{' + (', '.join (['0x{Byte:02X}'.format (Byte = Item) for Item in Buffer])) + '}', len (Buffer)
 
     #
     # Create command line argument parser object
@@ -81,7 +80,7 @@ if __name__ == '__main__':
                                       conflict_handler = 'resolve')
     parser.add_argument ("-i", "--input", dest = 'InputFile', type = argparse.FileType ('rb'), action='append', required = True,
                          help = "Input binary filename.  Multiple input files are combined into a single PCD.")
-    parser.add_argument ("-o", "--output", dest = 'OutputFile', type = argparse.FileType ('wb'),
+    parser.add_argument ("-o", "--output", dest = 'OutputFile', type = argparse.FileType ('w'),
                          help = "Output filename for PCD value or PCD statement")
     parser.add_argument ("-p", "--pcd", dest = 'PcdName', type = ValidatePcdName,
                          help = "Name of the PCD in the form <PcdTokenSpaceGuidCName>.<PcdCName>")
-- 
2.14.2.windows.3

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