and suppress errors in lib and backend tests (pretty sure they're
nearly all false positives apart from maybe 2 non-initializations
in "gif.c" (`pOut` buffer) and "raster.c" (`rotated_pixbuf`)
github: install de_DE.UTF-8 locale in ubuntu-debug also
and `out_colour_get_cmyk()`, to lessen chances of rounding
errors (in particular for VC6)
test_large: fix regression in change to test for formatting
`uint64_t` for `printf()`
win32/README: update MinGW/MSYS Qt version
test `ferror()` also in `fm_err()` if `err` zero and file
NetBSD: add instructions and some workarounds (`getopt_long_only()`
in particular)
qzint: check `__GNUC__` version for "-Wstringop-truncation"
suppression
outputting to in-memory buffer `symbol->memfile` instead of to
file `symbol->outfile`, ticket #301
Add "README.clang-tidy" and ".clang-tidy" options file
Suppress some warnings
