Fix missing Sys. in detectwsl (#39)

Author: MichaelHatherly

Project.toml

@@ -1,7 +1,7 @@
 name = "PkgAuthentication"
 uuid = "4722fa14-9d28-45f9-a1e2-a38605bd88f0"
 authors = ["Sebastian Pfitzner", "contributors"]
-version = "2.1.0"
+version = "2.1.1"
 
 [deps]
 Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"

src/helpers.jl

@@ -6,7 +6,7 @@ else
     # https://github.com/JuliaLang/julia/pull/57069
     function detectwsl()
         # We use the same approach as canonical/snapd do to detect WSL
-        islinux() && (
+        Sys.islinux() && (
             isfile("/proc/sys/fs/binfmt_misc/WSLInterop")
             || isdir("/run/WSL")
         )

test/utilities_test.jl

@@ -8,4 +8,6 @@
     @test PkgAuthentication.assert_dict_keys(Dict("bar" => 0), "foo", "bar"; msg="") === nothing
     @test_throws ErrorException PkgAuthentication.assert_dict_keys(Dict(), "foo", "bar"; msg="")
     @test_throws ErrorException PkgAuthentication.assert_dict_keys(Dict("baz" => 0), "foo", "bar"; msg="")
+
+    @test PkgAuthentication.detectwsl() isa Bool
 end