"Line is not an assignment in file '/etc/sysctl.conf'" is outputted during boot process

Solution Verified - Updated -

Issue

The following messages are outputted during boot process after changing sysctl.conf.

systemd-sysct: Line is not an assignment in file '/etc/sysctl.d/99-sysctl.conf': (null)
systemd-sysctl: Line is not an assignment in file '/etc/sysctl.conf': (null)

Environment

  • Red Hat Enterprise Linux 7

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