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7665a220a0
For printf formatting, a check is done to see if the number of
arguments matches the number of printf formatting placeholders.
The escape code `%%` that is used for representing a literal `%`
is also counted as a placeholder, but no argument will be provided
for that one.
This makes it impossible to use something like `("%f%%", percentage)`
in the code. In such case, one gets the error:
`Found 2 printf-patterns (%f, %%), but 1 args were given!`
This commit fixes this behavior by omitting the `%%` from the matches.
Co-authored-by: Maurice Makaay <mmakaay1@xs4all.net>
ESPHome 
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