Description of problem:
auto.smb fails to mount SMB/CIFS shares that end with a '$', but explicit entries e.g. in /etc/auto.misc work fine.

It appears that the '$' character escaping isn't working.

Version-Release number of selected component (if applicable):
autofs-5.1.6-4.fc32.x86_64


How reproducible:
100%

Steps to Reproduce:
1. Follow the steps to enable as described in /etc/auto.smb:
# Put a line like the following in /etc/auto.master:
# /cifs  /etc/auto.smb --timeout=300
# You'll be able to access Windows and Samba shares in your network
# under /cifs/host.domain/share


Actual results:
cd /cifs/host.domain/share$
bash: cd: /cifs/host.domain/share$: No such file or directory

Expected results:
ll /cifs/host.domain/testshare2/
total 0
-rwxr-xr-x. 1 username username 0 Jan 15 14:52  hello.txt
drwxr-xr-x. 2 username username 0 Jan 15 14:52 'New folder'

Alternatively, similar to an explicit entry in e.g. /etc/auto.misc:
share$ -fstype=cifs,credentials=/etc/creds/host.domain,uid=$UID,gid=$GID ://host.domain/share\$

cd /misc/share$
ll
total 0
-rwxr-xr-x. 1 username username 0 Jan 15 14:22  success.txt


Additional info:
$ smbclient -u=username -W=WORKGROUP -gL host.domain
Enter WORKGROUP\username's password: 
Disk|share$|Share
Disk|testshare2|Other share



$ sudo automount -f -v
Starting automounter version 5.1.6-4.fc32, master map auto.master
using kernel protocol version 5.05
setautomntent: lookup(sss): setautomntent: No such file or directory
mounted indirect on /misc with timeout 300, freq 75 seconds
mounted indirect on /net with timeout 300, freq 75 seconds
mounted indirect on /cifs with timeout 300, freq 75 seconds
attempting to mount entry /cifs/host.domain
>> awk: cmd. line:11: warning: regexp escape sequence `\&' is not a known regexp operator
mounted offset on /cifs/host.domain/share$ with timeout 300, freq 75 seconds
mounted offset on /cifs/host.domain/testshare2 with timeout 300, freq 75 seconds
mounted /cifs/host.domain
attempting to mount entry /cifs/host.domain/share$
>> mount error(2): No such file or directory
>> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) and kernel log messages (dmesg)
mount(generic): failed to mount //host.domain/share\$ (type cifs) on /cifs/host.domain/share$
failed to mount /cifs/host.domain/share$

$ dmesg | tail
[296985.595803] CIFS: Attempting to mount //host.domain/share\$
[296985.595892] No dialect specified on mount. Default has changed to a more secure dialect, SMB2.1 or later (e.g. SMB3), from CIFS (SMB1). To use the less secure SMB1 dialect to access old servers which do not support SMB3 (or SMB2.1) specify vers=1.0 on mount.
[296985.853442] CIFS VFS:  BAD_NETWORK_NAME: \\host.domain/share
[296985.869302] CIFS VFS: cifs_mount failed w/return code = -2