Fix typo

Change-Id: I11a6a967741dcaa80ec30a92fc3908c77844d5c1
Reviewed-on: https://gerrit.libreoffice.org/65615
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

udkapi/com/sun/star/beans/XExactName.idl

@@ -47,7 +47,7 @@ published interface XExactName: com::sun::star::uno::XInterface
             the exact name for a given aprroximate name.
 
         <p>For example "getExactName" could be returned for "GETEXACTNAME"
-        when "GETEXACTNAME" was used by a case insesitive scripting language. </p>
+        when "GETEXACTNAME" was used by a case insensitive scripting language. </p>
      */
     string getExactName( [in] string aApproximateName );