Fix - change docstring for x86-64 to x64.
@@ -158,7 +158,7 @@ JANET_CORE_FN(os_arch,
"(os/arch)",
"Check the ISA that janet was compiled for. Returns one of:\n\n"
"* :x86\n\n"
- "* :x86-64\n\n"
+ "* :x64\n\n"
"* :arm\n\n"
"* :aarch64\n\n"
"* :sparc\n\n"
