Update SDK used in global.json. (dotnet#32189)

jkoritzinsky · web-flow · commit 3d60cb5f11f2 · 2020-02-19T00:23:50.000-08:00
diff --git a/global.json b/global.json
@@ -5,7 +5,7 @@
     "rollForward": "major"
   },
   "tools": {
-    "dotnet": "5.0.100-alpha.1.20073.4"
+    "dotnet": "5.0.100-preview.1.20112.7"
   },
   "native-tools": {
     "cmake": "3.14.2",
