reorder toolchain targets to help clarity

toolchains/unittest/BUILD

diff --git a/toolchains/unittest/BUILD b/toolchains/unittest/BUILD
index 19b1043..d285888 100644
--- a/toolchains/unittest/BUILD
+++ b/toolchains/unittest/BUILD
@@ -19,6 +19,15 @@
     visibility = ["//visibility:public"],
 )
 
+toolchain(
+    name = "cmd_toolchain",
+    exec_compatible_with = [
+        "@bazel_tools//platforms:windows",
+    ],
+    toolchain = ":cmd",
+    toolchain_type = TOOLCHAIN_TYPE,
+)
+
 unittest_toolchain(
     name = "bash",
     failure_templ = """#!/bin/sh
@@ -34,15 +43,6 @@
 )
 
 toolchain(
-    name = "cmd_toolchain",
-    exec_compatible_with = [
-        "@bazel_tools//platforms:windows",
-    ],
-    toolchain = ":cmd",
-    toolchain_type = TOOLCHAIN_TYPE,
-)
-
-toolchain(
     name = "bash_toolchain",
     toolchain = ":bash",
     toolchain_type = TOOLCHAIN_TYPE,