AppVeyor: use Visual Studio 2019 image

[leleliu008]

No description provided.

[leleliu008]

It's very intresting.

GitHub Actions use Visual Studio 2019 Enterprise has no warnnings.
AppVeyor use Visual Studio 2019 Community repots some warnnings. due to /WX option is used, these warrnings are treated as errors and abort the build process.

[leleliu008]

C:\projects\ctags\peg\peg_common.h(133): error C2220: the following warning is treated as an error
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%2lu' requires an argument of type 'unsigned long', but variadic argument 1 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%4lu' requires an argument of type 'unsigned long', but variadic argument 2 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
kotlin.c
C:\projects\ctags\peg\peg_common.h(133): error C2220: the following warning is treated as an error
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%2lu' requires an argument of type 'unsigned long', but variadic argument 1 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%4lu' requires an argument of type 'unsigned long', but variadic argument 2 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
thrift.c
C:\projects\ctags\peg\peg_common.h(133): error C2220: the following warning is treated as an error
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%2lu' requires an argument of type 'unsigned long', but variadic argument 1 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%4lu' requires an argument of type 'unsigned long', but variadic argument 2 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
elm.c
C:\projects\ctags\peg\peg_common.h(133): error C2220: the following warning is treated as an error
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%2lu' requires an argument of type 'unsigned long', but variadic argument 1 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
C:\projects\ctags\peg\peg_common.h(133): warning C4477: 'fprintf' : format string '%4lu' requires an argument of type 'unsigned long', but variadic argument 2 has type 'size_t'
C:\projects\ctags\peg\peg_common.h(133): note: consider using '%zu' in the format string
Generating Code...
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\bin\HostX64\x64\cl.EXE"' : return code '0x2'

the MSVC compiler tell us using '%zu' instead of '%lu'

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (481ad1b) 85.03% compared to head (84bd546) 85.03%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3815   +/-   ##
=======================================
  Coverage   85.03%   85.03%           
=======================================
  Files         227      227           
  Lines       53889    53889           
=======================================
  Hits        45824    45824           
  Misses       8065     8065           

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[masatake]

I will merge this pull request because #3795 requires it.
@k-takata, your review, and comments are welcome even after merging.

[masatake]

@leleliu008 Can I ask you to update docs/windows.rst?
Just doing s/2013/2019/ is enough?

[k-takata]

LGTM.

[masatake]

@k-takata, thank you.