does not have to bother about multiple headers used wrongly.
The memory for the returned struct is associated with the easy handle and
-subsequent calls to \fIcurl_easy_header(3)\fP clobbers the struct used in the
+subsequent calls to \fIcurl_easy_header(3)\fP clobber the struct used in the
previous calls for the same easy handle. Applications need to copy the data if
it wants to keep it around. The memory used for the struct gets freed with
calling \fIcurl_easy_cleanup(3)\fP of the easy handle.