Fix quoting in xedkbuild.bat (again).

src/xedkbuild.bat

@@ -54,8 +54,8 @@ buildvm -m folddef -o lj_folddef.h lj_opt_fold.c
 @if errorlevel 1 goto :BAD
 
 @rem ---- Cross compiler ----
-@set "LJCOMPILE=%XEDK%\bin\win32\cl /nologo /c /MT /O2 /W3 /GF /Gm- /GR- /GS- /Gy /openmp- /D_CRT_SECURE_NO_DEPRECATE /DNDEBUG /D_XBOX /D_LIB /DLUAJIT_USE_SYSMALLOC"
-@set "LJLIB=%XEDK%\bin\win32\lib /nologo"
+@set LJCOMPILE="%XEDK%\bin\win32\cl" /nologo /c /MT /O2 /W3 /GF /Gm- /GR- /GS- /Gy /openmp- /D_CRT_SECURE_NO_DEPRECATE /DNDEBUG /D_XBOX /D_LIB /DLUAJIT_USE_SYSMALLOC
+@set LJLIB="%XEDK%\bin\win32\lib" /nologo
 @set "INCLUDE=%XEDK%\include\xbox"
 
 @if "%1" neq "debug" goto :NODEBUG