[commit: ghc] wip/jenkins: Fix quoting of carch (0d6ce67)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/jenkins
Link       : http://ghc.haskell.org/trac/ghc/changeset/0d6ce676501326802f2cacf6152758291f01e9c1/ghc

>---------------------------------------------------------------

commit 0d6ce676501326802f2cacf6152758291f01e9c1
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Mon Jun 12 16:40:33 2017 -0400

    Fix quoting of carch


>---------------------------------------------------------------

0d6ce676501326802f2cacf6152758291f01e9c1
 Jenkinsfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Jenkinsfile b/Jenkinsfile
index 98e0946..9f87698 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -122,7 +122,7 @@ def withMingw(String msystem, Closure f) {
   } else {
     fail
   }
-  chost = '${carch}-w64-mingw32'
+  chost = "${carch}-w64-mingw32"
 
   withEnv(["MSYSTEM=${msystem}",
            "PATH+mingw=${prefix}\\bin",