krb5 commit: Use APPVEYOR_BUILD_FOLDER

[Tom Yu]

https://github.com/krb5/krb5/commit/9a892a37611675d8eaec0a0c1d91fbc300eb1b69
commit 9a892a37611675d8eaec0a0c1d91fbc300eb1b69
Author: Tom Yu <tlyu at mit.edu>
Date:   Tue Apr 5 16:27:02 2016 -0400

    Use APPVEYOR_BUILD_FOLDER
    
    The directory that AppVeyor does checkouts into can vary.  Use the
    documented APPVEYOR_BUILD_FOLDER environment variable instead of
    hardcoding a value.

 appveyor.yml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/appveyor.yml b/appveyor.yml
index 7b8e7f1..be4f6f3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -5,7 +5,7 @@ build_script:
   - set CPU=i386
   - set NO_LEASH=1
   - set
-  - cd C:\Projects\krb5\src
+  - cd %APPVEYOR_BUILD_FOLDER%\src
   - nmake -f Makefile.in prep-windows
   - nmake
   - nmake install