[libc++] Fix two fr_FR locale tests on FreeBSD

FreeBSD's locale data uses the same U+2027 separator as Glibc 2.27 and newer.

Reviewed By: #libc, emaste, ldionne

Differential Revision: https://reviews.llvm.org/D91165

Author: arichardson

libcxx/test/std/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_fr_FR.pass.cpp

@@ -49,14 +49,15 @@ class my_facetw
         : Fw(refs) {}
 };
 
-
 // GLIBC 2.27 and newer use U2027 (narrow non-breaking space) as a thousands sep.
 // this function converts the spaces in string inputs to that character if need
-// be.
+// be. FreeBSD's locale data also uses U2027 since 2018.
 static std::wstring convert_thousands_sep(std::wstring const& in) {
+#if defined(_CS_GNU_LIBC_VERSION) || defined(__FreeBSD__)
 #if defined(_CS_GNU_LIBC_VERSION)
   if (glibc_version_less_than("2.27"))
     return in;
+#endif
   std::wstring out;
   unsigned I = 0;
   bool seen_decimal = false;

libcxx/test/std/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_fr_FR.pass.cpp

@@ -49,14 +49,15 @@ class my_facetw
         : Fw(refs) {}
 };
 
-
 // GLIBC 2.27 and newer use U2027 (narrow non-breaking space) as a thousands sep.
 // this function converts the spaces in string inputs to that character if need
-// be.
+// be. FreeBSD's locale data also uses U2027 since 2018.
 static std::wstring convert_thousands_sep(std::wstring const& in) {
+#if defined(_CS_GNU_LIBC_VERSION) || defined(__FreeBSD__)
 #if defined(_CS_GNU_LIBC_VERSION)
   if (glibc_version_less_than("2.27"))
     return in;
+#endif
   std::wstring out;
   unsigned I = 0;
   bool seen_num_start = false;