Add option -u to import and importas

2 files changed, 6 insertions, 2 deletions

diff --git a/doc/import.html b/doc/import.html
index 1c6896c..7e80b35 100644
--- a/doc/import.html
+++ b/doc/import.html
@@ -25,7 +25,7 @@ then executes another program.
 <h2> Interface </h2>
 
 <pre>
-     import [ -i | -D <em>default</em> ] [ -s ] [ -C | -c ] [ -n ] [ -d <em>delim</em> ] <em>envvar</em> <em>prog...</em>
+     import [ -i | -D <em>default</em> ] [ -u ] [ -s ] [ -C | -c ] [ -n ] [ -d <em>delim</em> ] <em>envvar</em> <em>prog...</em>
 </pre>
 
 <ul>
diff --git a/doc/importas.html b/doc/importas.html
index a9c6f15..81dca83 100644
--- a/doc/importas.html
+++ b/doc/importas.html
@@ -25,7 +25,7 @@ environment variable, then executes another program.
 <h2> Interface </h2>
 
 <pre>
-     importas [ -i | -D default ] [ -s ] [ -C | -c ] [ -n ] [ -d <em>delim</em> ] <em>variable</em> <em>envvar</em> <em>prog...</em>
+     importas [ -i | -D default ] [ -u ] [ -s ] [ -C | -c ] [ -n ] [ -d <em>delim</em> ] <em>variable</em> <em>envvar</em> <em>prog...</em>
 </pre>
 
 <ul>
@@ -49,6 +49,10 @@ use <tt>-D&nbsp;""</tt>. </li>
  <li> <tt>-i</tt>&nbsp;: Insist. If <em>envvar</em> is undefined,
 <tt>importas</tt> will not do anything; instead, it will exit 100 with an
 error message. This has precedence over any <tt>-D</tt> option. </li>
+ <li> <tt>-u</tt>&nbsp;: Unexport. <em>envvar</em> will be removed from
+the environment after the substitution. <tt>importas -u <em>variable</em>
+<em>envvar</em></tt> is equivalent to <tt>importas <em>variable</em>
+<em>envvar</em> unexport <em>envvar</em></tt>. </li>
  <li> Other options are used to <a href="el_transform.html">control
 the substitution mechanism</a>. </li>
 </ul>