[trivial] contrib: Fix `echo`s in verify.sh

contrib/verifysfbinaries/verify.sh

@@ -82,7 +82,7 @@ if [ $RET -ne 0 ]; then
       echo "Bad signature."
    elif [ $RET -eq 2 ]; then
       #or if a gpg error has occurred
-      echo "gpg error. Do you have Gavin's code signing key installed?"
+      echo "gpg error. Do you have the Bitcoin Core binary release signing key installed?"
    fi
 
    echo "gpg output:"
@@ -116,4 +116,6 @@ fi
 #everything matches! clean up the mess
 clean_up $FILES $SIGNATUREFILENAME $TMPFILE
 
+echo -e "Verified hashes of \n$FILES"
+
 exit 0