Add missing information to the configuration section of the setexpr
man-page.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Configuration
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-The setexpr gsub and sub operations are only available if CONFIG_REGEX=y.
+* The *setexpr* command is only available if CMD_SETEXPR=y.
+* The *setexpr fmt* sub-command is only available if CMD_SETEXPR_FMT=y.
+* The *setexpr gsub* and *setexpr sub* sub-commands are only available if
+ CONFIG_REGEX=y.
Return value
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