correct some logMethod calls

[sidey79]

• Please check if the PR fulfills these requirements

• Tests for the changes have been added / modified (needed for for bug fixes / features)
• commandref has been added / updated (needed for bug fixes / features)
• CHANGED has been updated (needed for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

Bugfix

• What is the current behavior? (You can also link to an open issue here)

Serval direct SIGNALDuino_Log3 calls where missed with PR #644

• What is the new behavior (if this is a feature change)?

The SIGNALDuino_Log3 calls are replaced with hash->{logMethod}->(

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

i don't think so

• Other information:

[coveralls]

Pull Request Test Coverage Report for Build 1773

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at ?%

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Totals
Change from base Build 1768:	0.0%
Covered Lines:
Relevant Lines:	0

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💛 - Coveralls