fix name of SetCurrentDirectory

Author: nikomatsakis

src/lib/fs.rs

@@ -183,7 +183,7 @@ fn change_dir(p: path) -> bool {
 
     #[cfg(target_os = "win32")]
     fn chdir(_p: path) -> bool {
-        ret str::as_buf(_p, {|buf| os::kernel32::SetCurrentDirectory(buf)});
+        ret str::as_buf(_p, {|buf| os::kernel32::SetCurrentDirectoryA(buf)});
     }
 
     #[cfg(target_os = "linux")]

src/lib/win32_os.rs

@@ -55,7 +55,7 @@ native mod kernel32 {
     fn CreateDirectoryA(lpPathName: LPCTSTR,
                         lpSecurityAttributes: LPSECURITY_ATTRIBUTES) -> bool;
     fn RemoveDirectoryA(lpPathName: LPCTSTR) -> bool;
-    fn SetCurrentDirectory(lpPathName: LPCTSTR) -> bool;
+    fn SetCurrentDirectoryA(lpPathName: LPCTSTR) -> bool;
 }
 
 // FIXME turn into constants