Fix delayed expansion scripting error in runtest.cmd

Commit migrated from https://github.com/dotnet/coreclr/commit/c44dcf24232afd8f3c3f396a7d6cf5f5af0c3baf

diff --git a/src/coreclr/tests/runtest.cmd b/src/coreclr/tests/runtest.cmd
index e54349c..9d54289 100644 (file)
--- a/src/coreclr/tests/runtest.cmd
+++ b/src/coreclr/tests/runtest.cmd
@@ -120,7 +120,7 @@ if /i "%__VSVersion%" == "vs2017" (
   set "__VCToolsRoot=%VS140COMNTOOLS%\..\..\VC"
 
   set _msbuildexe="%ProgramFiles(x86)%\MSBuild\14.0\Bin\MSBuild.exe"
-  if not exist %_msbuildexe% set _msbuildexe="%ProgramFiles%\MSBuild\14.0\Bin\MSBuild.exe"
+  if not exist !_msbuildexe! set _msbuildexe="%ProgramFiles%\MSBuild\14.0\Bin\MSBuild.exe"
 )
 
 :: Does VS really exist?