kernel32/tests: Check last error before calling lstrcmpA() since it may reset GLE (try 3)

[Ge van Geldorp]

Try 3: split test

Changelog:
  kernel32/tests: Check last error before calling lstrcmpA() since it  may
reset GLE
---
 dlls/kernel32/tests/codepage.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)



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