libcurl.3: Typo fixed

docs/libcurl/libcurl.3

@@ -40,7 +40,7 @@ details.
 
 To transfer files, you create an "easy handle" using \fIcurl_easy_init(3)\fP
 for a single individual transfer (in either direction). You then set your
-desired set of options in that handle with \fIcurk_easy_setopt(3)\fP. Options
+desired set of options in that handle with \fIcurl_easy_setopt(3)\fP. Options
 you set with \fIcurl_easy_setopt(3)\fP stick. They will be used on every
 repeated use of this handle until you either change the option, or you reset
 them all with \fIcurl_easy_reset(3)\fP.