Aside from linking to online hardening guides, mention that built-in guides are also available.

src/ssh_audit/ssh_audit.py

@@ -333,7 +333,7 @@ def output_info(out: OutputBuffer, software: Optional['Software'], client_audit:
 
         # If any warnings or failures were given, print a link to the hardening guides.
         if any_problems:
-            out.warn('(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>')
+            out.warn('(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>')
 
         # Add any additional notes.
         for additional_note in additional_notes:

test/docker/expected_results/dropbear_2019.78_test1.txt

@@ -93,5 +93,5 @@
 (rec) -kexguess2@matt.ucc.asn.au     -- kex algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_4.0p1_test1.txt

@@ -107,5 +107,5 @@
 (rec) -aes256-cbc                         -- enc algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_5.6p1_test1.txt

@@ -117,5 +117,5 @@
 (rec) -umac-64@openssh.com                  -- mac algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_5.6p1_test2.txt

@@ -118,5 +118,5 @@
 (rec) -umac-64@openssh.com                  -- mac algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_5.6p1_test3.txt

@@ -117,5 +117,5 @@
 (rec) -umac-64@openssh.com                  -- mac algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_5.6p1_test4.txt

@@ -116,5 +116,5 @@
 (rec) -umac-64@openssh.com                  -- mac algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_5.6p1_test5.txt

@@ -115,5 +115,5 @@
 (rec) -umac-64@openssh.com                  -- mac algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_8.0p1_test1.txt

@@ -104,5 +104,5 @@
 (rec) -umac-64@openssh.com                  -- mac algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_8.0p1_test2.txt

@@ -96,5 +96,5 @@
 (rec) -umac-64@openssh.com                  -- mac algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>
 

test/docker/expected_results/openssh_8.0p1_test3.txt

@@ -45,5 +45,5 @@
 (rec) -curve25519-sha256@libssh.org         -- kex algorithm to remove 
 
 # additional info
-(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>
+(nfo) For hardening guides on common OSes, a built-in list can be viewed with --list-hardening-guides, or an online list can be found at: <https://www.ssh-audit.com/hardening_guides.html>