Be explicit that zip_fseek does not work on encrypted data.
Closes #271.
diff --git a/man/zip_fseek.mdoc b/man/zip_fseek.mdoc
index cc88f67..d7dfdae 100644
--- a/man/zip_fseek.mdoc
+++ b/man/zip_fseek.mdoc
@@ -29,7 +29,7 @@
.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd October 15, 2021
+.Dd November 13, 2021
.Dt ZIP_FSEEK 3
.Os
.Sh NAME
@@ -55,8 +55,8 @@
.Xr fseek 3 .
.Pp
.Nm
-only works on uncompressed (stored) data.
-When called on compressed data it will return an error.
+only works on uncompressed (stored), unencrypted data.
+When called on compressed or encrypted data it will return an error.
.Pp
The
.Fn zip_file_is_seekable
