Fix bug in gdm banner deregexify

linux_os/guide/system/accounts/accounts-banners/banner_etc_issue/bash/shared.sh

@@ -1,6 +1,6 @@
 # platform = multi_platform_rhel,multi_platform_fedora,multi_platform_ol,multi_platform_rhv,multi_platform_sle,multi_platform_slmicro,multi_platform_ubuntu,multi_platform_almalinux
 
-login_banner_text="(bash-populate login_banner_text)"
+login_banner_text='(bash-populate login_banner_text)'
 
 # Multiple regexes transform the banner regex into a usable banner
 # 0 - Remove anchors around the banner text

linux_os/guide/system/accounts/accounts-banners/gui_login_banner/dconf_gnome_login_banner_text/bash/shared.sh

@@ -1,6 +1,6 @@
 # platform = multi_platform_all
 
-login_banner_text="(bash-populate login_banner_text)"
+login_banner_text='(bash-populate login_banner_text)'
 
 # Multiple regexes transform the banner regex into a usable banner
 # 0 - Remove anchors around the banner text

linux_os/guide/system/accounts/accounts-banners/gui_login_banner/dconf_gnome_login_banner_text/tests/wrong_value_stig.fail.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
+# platform = multi_platform_ol,multi_platform_rhel,multi_platform_fedora
 # profiles = xccdf_org.ssgproject.content_profile_stig
+# packages = dconf,gdm
 
 login_banner_text="Wrong Banner Text"
 expanded=$(echo "$login_banner_text" | sed 's/(\\\\\x27)\*/\\\x27/g;s/(\\\x27)\*//g;s/(\\\\\x27)/tamere/g;s/(\^\(.*\)\$|.*$/\1/g;s/\[\\s\\n\][+*]/ /g;s/\\//g;s/(n)\*/\\n/g;s/\x27/\\\x27/g;')

shared/macros/10-bash.jinja

@@ -1403,7 +1403,7 @@ EOF
 
 {{# Strips newline or newline escape sequence regex #}}
 {{% macro bash_deregexify_banner_newline(banner_var_name, newline) -%}}
-{{{ banner_var_name }}}=$(echo "${{{ banner_var_name }}}" | sed 's/(?:\[\\n\]+|(?:\\n)+)/{{{ newline }}}/g')
+{{{ banner_var_name }}}=$(echo "${{{ banner_var_name }}}" | sed 's/(?:\[\\n\]+|(?:\\\\n)+)/{{{ newline }}}/g')
 {{%- endmacro %}}