fix(known_hosts): handle = separated ssh config options

Author: scop

bash_completion

@@ -1776,7 +1776,7 @@ _known_hosts_real()
         # TODO(?): try to make known hosts files with more than one consecutive
         #          spaces in their name work (watch out for ~ expansion
         #          breakage! Alioth#311595)
-        tmpkh=($(awk 'sub("^[ \t]*([Gg][Ll][Oo][Bb][Aa][Ll]|[Uu][Ss][Ee][Rr])[Kk][Nn][Oo][Ww][Nn][Hh][Oo][Ss][Tt][Ss][Ff][Ii][Ll][Ee][ \t]+", "") { print $0 }' "${config[@]}" | sort -u))
+        tmpkh=($(awk 'sub("^[ \t]*([Gg][Ll][Oo][Bb][Aa][Ll]|[Uu][Ss][Ee][Rr])[Kk][Nn][Oo][Ww][Nn][Hh][Oo][Ss][Tt][Ss][Ff][Ii][Ll][Ee][ \t=]+", "") { print $0 }' "${config[@]}" | sort -u))
         IFS=$ifs
     fi
     if ((${#tmpkh[@]} != 0)); then
@@ -1860,7 +1860,7 @@ _known_hosts_real()
 
     # append any available aliases from ssh config files
     if [[ ${#config[@]} -gt 0 && -v aliases ]]; then
-        local -a hosts=($(command sed -ne 's/^[[:blank:]]*[Hh][Oo][Ss][Tt][[:blank:]]\(.*\)$/\1/p' "${config[@]}"))
+        local -a hosts=($(command sed -ne 's/^[[:blank:]]*[Hh][Oo][Ss][Tt][[:blank:]=]\{1,\}\(.*\)$/\1/p' "${config[@]}"))
         if ((${#hosts[@]} != 0)); then
             COMPREPLY+=($(compgen -P "$prefix" \
                 -S "$suffix" -W '${hosts[@]%%[*?%]*}' -X '\!*' -- "$cur"))

test/fixtures/_known_hosts_real/config

@@ -3,5 +3,5 @@
     # Unindented
 Host gee* jar?this-part-we-do-not-complete-at-least-yet
      HostName %h.example.com
-	# Indented
-    Host hus%%eth0 !negated  #not-a-comment
+	# Indented, with = separator
+    Host = hus%%eth0 !negated  #not-a-comment

test/fixtures/_known_hosts_real/config_tilde

@@ -1,4 +1,4 @@
-# With quotes and tilde
-UserKnownHostsFile "~/_known_hosts_real/known_hosts2"
+# With quotes and tilde, and =
+UserKnownHostsFile = "~/_known_hosts_real/known_hosts2"
 # Without quotes, with tilde, and another on the same line
 UserKnownHostsFile ~/_known_hosts_real/known_hosts3 _known_hosts_real/known_hosts4