[Bug #1105706] Use correct name for constant

Doc/lib/libcurses.tex

@@ -635,8 +635,8 @@ can \emph{not} be used.  The defaults are listed in this table:}
   \lineiii{bs}{Bottom}{\constant{ACS_HLINE}}
   \lineiii{tl}{Upper-left corner}{\constant{ACS_ULCORNER}}
   \lineiii{tr}{Upper-right corner}{\constant{ACS_URCORNER}}
-  \lineiii{bl}{Bottom-left corner}{\constant{ACS_BLCORNER}}
-  \lineiii{br}{Bottom-right corner}{\constant{ACS_BRCORNER}}
+  \lineiii{bl}{Bottom-left corner}{\constant{ACS_LLCORNER}}
+  \lineiii{br}{Bottom-right corner}{\constant{ACS_LRCORNER}}
 \end{tableiii}
 \end{methoddesc}