maint: switch from `print -P %F{col-nr} to m {col-name}

[psprint]

The m function is automatically provided for the moment of loading/installing a plugin and it's the same as +zinit-message.

Description

Allow theming of bin-gem-node messages.

Motivation and Context

There is a problem because the color codes are currently hard-coded into bin-gem-node. With this patch, the messages will make use of +zinit-message theming.

How Has This Been Tested?

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• Bug fix (non-breaking change which fixes an issue)
• Documentation change
• New feature (non-breaking change which adds functionality)

Checklist:

• All new and existing tests passed.
• I have added tests to cover my changes.
• I have updated the documentation accordingly.

[psprint]

@vladdoster @pschmitt @alichtman ping

[vladdoster]

Please use +zi-log instead of m. m gives developers no information about what it does.

[psprint]

Please use +zi-log instead of m. m gives developers no information about what it does.

@vladdoster I've switched to +zi-log. That said, it would be good to document m function. It's designed to be used in atclone/atpull ices, to maximally shorten the code entered into them.