cmake(1): Change wording for fields in presets
The placement of the word "optionally" implied that the fields mentioned before are not optional, which is not the case starting from version 3 of the presets.
Reference: !5946 (comment 936033)
The placement of the word "optionally" implied that the fields mentioned before are not optional, which is not the case starting from version 3 of the presets.
Reference: !5946 (comment 936033)