Set output format of naming constant

By default, strace will decode naming constant (equals to use -X abbrev option):

# strace ls
......
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
......

If raw value is wanted, using -X raw option:

# strace -X raw ls
......
access("/etc/ld.so.preload", 0x4)       = -1 ENOENT (No such file or directory)
......

-X verbose outputs both:

# strace -X verbose ls
......
access("/etc/ld.so.preload", 0x4 /* R_OK */) = -1 ENOENT (No such file or directory)