Align return value column

By default, the alignment column for results is 40:

# strace ls
execve("/usr/bin/ls", ["ls"], 0x7ffca1e1f070 /* 21 vars */) = 0
brk(NULL)                               = 0x55c6d34e2000
arch_prctl(0x3001 /* ARCH_??? */, 0x7ffd28e4cd10) = -1 EINVAL (Invalid argument)
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=98317, ...}) = 0
mmap(NULL, 98317, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f6ebc2ae000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/libcap.so.2", O_RDONLY|O_CLOEXEC) = 3
......

-a option can be used to adjust the alignment:

# strace -a 80 ls
execve("/usr/bin/ls", ["ls"], 0x7fffe93ef0d0 /* 21 vars */)                     = 0
brk(NULL)                                                                       = 0x562a6bfa1000
arch_prctl(0x3001 /* ARCH_??? */, 0x7ffd332954c0)                               = -1 EINVAL (Invalid argument)
access("/etc/ld.so.preload", R_OK)                                              = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC)                        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=98317, ...})                            = 0
mmap(NULL, 98317, PROT_READ, MAP_PRIVATE, 3, 0)                                 = 0x7f2f8fd22000
close(3)                                                                        = 0
......

Tune this parameter according to your screen or your habit.