current env_set_default_vars() doesn't delete
var that are not in the imported env. hashtable
removes vars that are not in the imported
env but present in the current env only if H_NOCLEAR
flag is not set.

This change is to avoid passing H_NOCLEAR flag if
specific vars are passed to env_set_default_vars()

Without this change:
Marvell>> env default boot_mode
Marvell>>

With the change:
Marvell>> env default boot_mode
WARNING: 'boot_mode' not in imported env, deleting it!

Signed-off-by: Ravi Minnikanti <rminnikanti@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

If 'env print -e' is invoked without variable name, all UEFI variables are
listed.

Describe that 'env print -e' requires CONFIG_HEXDUMP=y to print content of
UEFI variables.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

* add link to askenv man-page
* add printenv

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

The 'env' man-page is currently only partially sorted.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Add the description of CLI commands to the generated index.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Describe the env command.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>