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sed replace quoting (server.crontab fails to update crontab entry sometimes)

See original GitHub issue

Describe the bug I have a feeling this is caused by the cron_name param. Basically, if I modify the command param for server.crontab but leave cron_name as is, when the deploy is run, it will consider the task to already be present resulting in a no-op.

To Reproduce

Run on host: crontab -r
Run the below deploy once and verify the crontab updated.
Change the command, and run the below deploy again.
The crontab will not have been updated.

#!/usr/bin/env python
# -*- coding: utf-8 -*-


"""Deploy to illustrate crontab bug.
"""


###############################################################################
# Imports
###############################################################################


# ==Site-Packages==
from pyinfra.operations import server


###############################################################################
# Main
###############################################################################


server.crontab(
    name="Install test cron task.",
    command="echo 'banana'",
    #  command="echo 'yummy'",
    cron_name="My special task",
    minute="*/10",
)

Expected behavior The crontab should be updated to reflect the changes to the command.

Meta

❯ pyinfra --support
--> Support information:

    If you are having issues with pyinfra or wish to make feature requests, please
    check out the GitHub issues at https://github.com/Fizzadar/pyinfra/issues .
    When adding an issue, be sure to include the following:

    System: Darwin
      Platform: macOS-10.14.6-x86_64-i386-64bit
      Release: 18.7.0
      Machine: x86_64
    pyinfra: v1.3.6
    Executable: /Users/----/.virtualenvs/05-hz-pyinfra-d0Faa_8y-py3.9/bin/pyinfra
    Python: 3.9.1 (CPython, Clang 10.0.1 (clang-1001.0.46.4))