help-util: reword comment a bit

Based on comments here:

https://github.com/systemd/systemd/pull/41805#discussion_r3141746275

diff --git a/src/shared/help-util.c b/src/shared/help-util.c
index b88da2d2595856dbf1294fce83ab1648d3849efb..7e9d3e70be0c6db26694ad4d18e63dd2036f30ca 100644 (file)
--- a/src/shared/help-util.c
+++ b/src/shared/help-util.c
@@ -8,8 +8,8 @@
 /* These are helpers for putting together --help texts in a uniform way with a common output style. Each
  * function generates a separate part of the --help text:
  *
- *   1. help_cmdline() outputs a brief summary of the command line syntax. (used at least once, in some cases
- *      multiple times.) This generally comes first in the output.
+ *   1. help_cmdline() outputs a brief summary of the command line syntax. This shall be used at least once,
+ *      in some cases multiple times. This generally comes first in the output.
  *
  *   2. help_abstract() outputs a brief prose abstract of the command, should carry a single line of text
  *      that gives the user a hint what this tool does. Use only once, right after the last help_cmdline().