package/python-crontab: fix check-package warning

Fixes:

package/python-crontab/Config.in:5: help text: <tab><2 spaces><62 chars> (http://nightly.buildroot.org/#writing-rules-config-in)
26 lines processed
1 warnings generated

Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/python-crontab/Config.in

@@ -2,7 +2,8 @@ config BR2_PACKAGE_PYTHON_CRONTAB
 	bool "python-crontab"
 	select BR2_PACKAGE_PYTHON_DATEUTIL # runtime
 	help
-	  Crontab module for reading and writing crontab files and accessing
-	  the system cron automatically and simply using a direct API.
+	  Crontab module for reading and writing crontab files and
+	  accessing the system cron automatically and simply using
+	  a direct API.
 
 	  https://gitlab.com/doctormo/python-crontab/