GNU ln compatibility patch

[RonGee]

Using solo-agent on Linux. GNU ln does not have -h but it has -n
On the Mac, ln supports -n as an alias for -h, so to make solo-agent work on both,

~ diff -uN ~/bin/solo-agent.orig ~/bin/solo-agent    
--- ~/bin/solo-agent.orig  2020-06-15 23:47:04.000000000 -0400
+++ ~/bin/solo-agent   2020-12-13 20:19:58.241864747 -0500
@@ -126,7 +126,7 @@
     SSH_AUTH_SOCK="$(canonical_socket "${SSH_AUTH_SOCK}")"
     export SSH_AUTH_SOCK
     # Link to ID_SOCK for easy use/reference
-    ln -fhs "${SSH_AUTH_SOCK}" "${ID_SOCK}"
+    ln -fns "${SSH_AUTH_SOCK}" "${ID_SOCK}"
 fi
 # Display Variables
 display_variables

[TimidRobot]

GNU Coreutils ln manpage excerpts:

       -n, --no-dereference
              treat  LINK_NAME as a normal file if it is a symbolic link to a di‐
              rectory

macOS BSD ln manpage excerpts:

     -h    If the link_name or link_dirname is a symbolic link, do not fol-
           low it.  This is most useful with the -f option, to replace a
           symlink which may point to a directory.

     -n    Same as -h, for compatibility with other ln implementations.

[TimidRobot]

Thank you @RonGee !