Please correct FMT_LOCALE_THROW for Elbrus architecture.

[ilyakurdyukov]

Warning at posix-mock-test, you need to add __THROW for Elbrus.

[ 19%] Building CXX object test/CMakeFiles/test-main.dir/gtest-extra.cc.o
lcc: "fmt-master/test/posix-mock-test.cc", line 506: warning #541:
          allowing all exceptions is incompatible with previous function
          "freelocale" (declared at line 180 of "/usr/include/locale.h")
  FreeLocaleResult freelocale(locale_type locale) FMT_LOCALE_THROW {

lcc: "fmt-master/test/posix-mock-test.cc", line 512: warning #541:
          allowing all exceptions is incompatible with previous function
          "strtod_l" (declared at line 295 of "/usr/include/stdlib.h")
                  locale_type locale) FMT_LOCALE_THROW {

This works for me to suppress this warning (you might do it differently):

test/posix-mock-test.cc

-#  if defined(__THROW) && FMT_GCC_VERSION > 0 && FMT_GCC_VERSION <= 408
+#  if defined(__THROW) && ((FMT_GCC_VERSION > 0 && FMT_GCC_VERSION <= 408) || defined (__e2k__))

The Elbrus compiler declares GNUC version as 7.3.0.