glibc_multi: fix package name (close #5284)

"multi" should be between the "glibc" and the version

pkgs/development/libraries/glibc/multi.nix

@@ -1,7 +1,10 @@
 { runCommand, glibc, glibc32
 }:
 
-runCommand "${glibc.name}-multi"
+let
+  nameVersion = builtins.parseDrvName glibc.name;
+in
+runCommand "${nameVersion.name}-multi-${nameVersion.version}"
   { inherit glibc32;
    glibc64 = glibc;
   }