fix the syntax

Jorge Aparicio · Jorge Aparicio · commit 5af72233a71f · 2016-08-08T02:00:47.000-05:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,8 +1,7 @@
 environment:
-  global:
-    matrix:
-      - TARGET=i686-pc-windows-msvc
-      - TARGET=x86_64-pc-windows-msvc
+  matrix:
+    - TARGET: i686-pc-windows-msvc
+    - TARGET: x86_64-pc-windows-msvc
 
 install:
   - ps: Start-FileDownload "https://static.rust-lang.org/dist/rust-nightly-${env:TARGET}.exe"
