[PATCH v2 2/6] advapi32: Support the base directory parameter in RegLoadMUIString.

[Akihiro Sagawa]

In v2,
 - Fix off-by-one buffer allocation error.
 - Add GetFileAttributes to verify that the file exists at the specified file path.
   In other words, we don't search the PATH for the DLL.
 - use GetSystemDirectoryW instead of kernel32's global variable in kernel32.

Signed-off-by: Akihiro Sagawa <sagawa.aki(a)gmail.com>
---
 dlls/advapi32/registry.c       | 45 +++++++++++++++++++++++++++++++-----------
 dlls/advapi32/tests/registry.c |  4 ++--
 dlls/kernel32/time.c           |  4 +++-
 3 files changed, 38 insertions(+), 15 deletions(-)