ld.so.8: Correct linker option name

The linker option that sets the DF_1_NODEFLIB flag is -z nodefaultlib. -z nodeflib is undefined.

```
% ld.bfd -m elf_x86_64 -e 0 /dev/null -z nodeflib
ld.bfd: warning: -z nodeflib ignored
% ld.lld -m elf_x86_64 -e 0 /dev/null -z nodeflib
ld.lld: warning: unknown -z value: nodeflib
```

Signed-off-by Fangrui Song <[email protected]>

--
Changes from v1:

* Improve commit message

---
 man8/ld.so.8 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

man8/ld.so.8 +2 -2

index 1c9a13f56..351913bd8 100644
@@ -83,7 +83,7 @@ From the cache file
 which contains a compiled list of candidate shared objects previously found
 in the augmented library path.
 If, however, the binary was linked with the
-.B \-z nodeflib
+.B \-z nodefaultlib
 linker option, shared objects in the default paths are skipped.
 Shared objects installed in hardware capability directories (see below)
 are preferred to other shared objects.

@@ -97,7 +97,7 @@ and then
 and then
 .IR /usr/lib64 .)
 If the binary was linked with the
-.B \-z nodeflib
+.B \-z nodefaultlib
 linker option, this step is skipped.
 .\"
 .SS Dynamic string tokens