writefunction data is not zero terminated

docs/libcurl/curl_easy_setopt.3

@@ -70,10 +70,10 @@ Function pointer that should match the following prototype: \fBsize_t
 function( void *ptr, size_t size, size_t nmemb, void *stream);\fP This
 function gets called by libcurl as soon as there is data reveiced that needs
 to be saved. The size of the data pointed to by \fIptr\fP is \fIsize\fP
-multiplied with \fInmemb\fP.  Return the number of bytes actually taken care
-of. If that amount differs from the amount passed to your function, it'll
-signal an error to the library and it will abort the transfer and return
-\fICURLE_WRITE_ERROR\fP.
+multiplied with \fInmemb\fP, it will not be zero terminated. Return the number
+of bytes actually taken care of. If that amount differs from the amount passed
+to your function, it'll signal an error to the library and it will abort the
+transfer and return \fICURLE_WRITE_ERROR\fP.
 
 Set the \fIstream\fP argument with the \fBCURLOPT_FILE\fP option.