Hook zip_set_file_compression man page into build.

--HG--
branch : HEAD
diff --git a/man/CMakeLists.txt b/man/CMakeLists.txt
index 19c0eaa..d723942 100644
--- a/man/CMakeLists.txt
+++ b/man/CMakeLists.txt
@@ -29,6 +29,7 @@
   zip_set_archive_flag.mdoc
   zip_set_default_password.mdoc
   zip_set_file_comment.mdoc
+  zip_set_file_compression.mdoc
   zip_set_file_extra.mdoc
   zip_source_buffer.mdoc
   zip_source_file.mdoc