add missing type ascription to Logger's apply method

[mtkp]

Problem

when logging strings that sometimes contain "%" (e.g. URLs with escaped characters), if i also log an exception, i might get a java.util.UnknownFormatConversionException. this only happens with the Logger's apply method.

Solution

added a missing type ascription to the apply method, so it sends the correct items sequence to the log method.

Result

fixes added test case (using apply with strings that have %)

[claassistantio]

All committers have signed the CLA.

[codecov-io]

Codecov Report

Merging #263 into develop will increase coverage by 0.36%. The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop     #263      +/-   ##
===========================================
+ Coverage    45.87%   46.23%   +0.36%     
===========================================
  Files          228      228              
  Lines        14436    14622     +186     
  Branches       902      919      +17     
===========================================
+ Hits          6622     6761     +139     
- Misses        7814     7861      +47

Impacted Files	Coverage Δ
...ng/src/main/scala/com/twitter/logging/Logger.scala	62.5% <100%> (+0.78%)	:arrow_up:
util-core/src/main/scala/com/twitter/io/Buf.scala	92% <0%> (+0.21%)	:arrow_up:
...core/src/main/scala/com/twitter/util/Promise.scala	79.11% <0%> (+0.4%)	:arrow_up:
...-core/src/main/scala/com/twitter/util/Future.scala	54% <0%> (+5.7%)	:arrow_up:
...in/scala/com/twitter/logging/QueueingHandler.scala	100% <0%> (+6.06%)	:arrow_up:

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[bryce-anderson]

Merged as c875d359d6505a6979258f9fd596fa05ebd3c792. Thanks!

[mtkp]

thanks @bryce-anderson !