archive_entry_perms.3: clarify that you don't need to strdup() [gu]name (#2239)

Currently updating archivemount which does
```c
	pwd = getpwuid(st.st_uid);
	if(pwd)
		archive_entry_set_uname(node->entry, strdup(pwd->pw_name));
	grp = getgrgid(st.st_gid);
	if(grp)
		archive_entry_set_gname(node->entry, strdup(grp->gr_name));
```
and I'm assuming the strdups are actually leaks? The manual is silent on
this.

diff --git a/libarchive/archive_entry_perms.3 b/libarchive/archive_entry_perms.3
index 0291b7b4988bfa248c42049f1dbb840039ca155e..4bfbfc3c7815ae57fa40af50dd47338d47e20179 100644 (file)
--- a/libarchive/archive_entry_perms.3
+++ b/libarchive/archive_entry_perms.3
@@ -150,6 +150,7 @@ character strings at the same time.
 .Fn archive_entry_set_XXX
 is an alias for
 .Fn archive_entry_copy_XXX .
+The strings are copied, and don't need to outlive the call.
 .Ss File Flags
 File flags are transparently converted between a bitmap
 representation and a textual format.