Declare empty commandLineParams if the standard one is not declared.

confutils.nim

@@ -884,21 +884,15 @@ func constructEnvKey*(prefix: string, key: string): string {.raises: [].} =
   except ValueError as err:
     raiseAssert "strformat.`&` failed: " & err.msg
 
-var getCLIParams*: proc(): seq[TaintedString]
-
 # On Posix there is no portable way to get the command
 # line from a DLL and thus the proc isn't defined in this environment.
 # See https://nim-lang.org/docs/os.html#commandLineParams
-when declared(commandLineParams):
-  getCLIParams = commandLineParams
-else:
-  getCLIParams = proc(): seq[TaintedString] =
-    var emptyTaintedSeq: seq[TaintedString]
-    return emptyTaintedSeq
+when not declared(commandLineParams):
+  proc commandLineParams(): seq[string] = discard
 
 proc loadImpl[C, SecondarySources](
     Configuration: typedesc[C],
-    cmdLine = getCLIParams(),
+    cmdLine = commandLineParams(),
     version = "",
     copyrightBanner = "",
     printUsage = true,
@@ -1180,7 +1174,7 @@ proc loadImpl[C, SecondarySources](
 
 template load*(
     Configuration: type,
-    cmdLine = getCLIParams(),
+    cmdLine = commandLineParams(),
     version = "",
     copyrightBanner = "",
     printUsage = true,