doc: Clarify documentation of guix environment --expose vs. --share

The documentation for --expose and --share parameters are so similar that the
reader has to read both descriptions in parallel to find the difference.

* doc/guix.texi (Invoking guix environment)[--expose, --share]: Merge the two
  descriptions into one.

Signed-off-by: Jakub Kądziołka <kuba@kadziolka.net>

1 files changed, 4 insertions, 15 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 25b50bad9e..3c310c0912 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -4964,8 +4964,10 @@ shared and will change to the user's home directory within the container
 instead.  See also @code{--user}.
 
 @item --expose=@var{source}[=@var{target}]
-For containers, expose the file system @var{source} from the host system
-as the read-only file system @var{target} within the container.  If
+@item --share=@var{source}[=@var{target}]
+For containers, @code{--expose} (resp. @code{--share}) exposes the file
+system @var{source} from the host system as the read-only
+(resp. writable) file system @var{target} within the container.  If
 @var{target} is not specified, @var{source} is used as the target mount
 point in the container.
 
@@ -4977,19 +4979,6 @@ directory:
 guix environment --container --expose=$HOME=/exchange --ad-hoc guile -- guile
 @end example
 
-@item --share=@var{source}[=@var{target}]
-For containers, share the file system @var{source} from the host system
-as the writable file system @var{target} within the container.  If
-@var{target} is not specified, @var{source} is used as the target mount
-point in the container.
-
-The example below spawns a Guile REPL in a container in which the user's
-home directory is accessible for both reading and writing via the
-@file{/exchange} directory:
-
-@example
-guix environment --container --share=$HOME=/exchange --ad-hoc guile -- guile
-@end example
 @end table
 
 @command{guix environment}