By default 'mutt' embeds configure flags and the output of 'gcc -v',
which contains the store file name of Bash and GCC.  This patch makes
sure we don't embed a reference to these in 'mutt'.

diff --git a/txt2c.sh b/txt2c.sh
index f634bb9..53845cf 100755
--- a/txt2c.sh
+++ b/txt2c.sh
@@ -21,6 +21,8 @@ txt2c_fallback () {
 	echo ";"
 }
 
+echo "unsigned char $1[] = \"value of '$1' not kept\";"
+exit 0
 if ./txt2c test </dev/null >/dev/null 2>&1; then
     ./txt2c "$1"
 else
><a href='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='40448a023600b7b5e876d0a1d2a25878e61de579'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=40448a023600b7b5e876d0a1d2a25878e61de579'>refs</a><a class='active' href='/guix/log/scripts'>log</a><a href='/guix/tree/scripts?id=40448a023600b7b5e876d0a1d2a25878e61de579'>tree</a><a href='/guix/commit/scripts?id=40448a023600b7b5e876d0a1d2a25878e61de579'>commit</a><a href='/guix/diff/scripts?id=40448a023600b7b5e876d0a1d2a25878e61de579'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/scripts'>
<input type='hidden' name='id' value='40448a023600b7b5e876d0a1d2a25878e61de579'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
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<div class='path'>path: <a href='/guix/log/?id=40448a023600b7b5e876d0a1d2a25878e61de579'>root</a>/<a href='/guix/log/scripts?id=40448a023600b7b5e876d0a1d2a25878e61de579'>scripts</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/scripts?id=40448a023600b7b5e876d0a1d2a25878e61de579&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-06-09 12:02:27 +0200'>2018-06-09</span></td><td><a href='/guix/commit/scripts?id=75e24d7b0e19ab2164aecb340e82d07d2b9714e7'>pull: Install the new Guix in a profile.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-01-28 23:14:55 +0100'>2018-01-28</span></td><td><a href='/guix/commit/scripts?id=63666a348af5ef5190cbe9611c40f2b9188b7967'>guix: Let Emacs detect “scripts/guix.in” appropriate mode.</a><span class='msg-avail'>...</span></td><td>Mathieu Lirzin</td></tr>
<tr><td><span title='2018-01-23 15:01:15 +0100'>2018-01-23</span></td><td><a href='/guix/commit/scripts?id=6f774d481839f87178c5895ac2d661e141f879b8'>guix: Refactor script.</a><span class='msg-avail'>...</span></td><td>Mathieu Lirzin</td></tr>
<tr><td><span title='2018-01-23 10:13:16 +0100'>2018-01-23</span></td><td><a href='/guix/commit/scripts?id=cba386c1295b7054df22dfb4662b1b92f668e2c0'>build: Expand ‘scripts/guix’ at Make time.</a><span class='msg-avail'>...</span></td><td>Mathieu Lirzin</td></tr>
<tr><td><span title='2017-03-20 23:26:18 +0100'>2017-03-20</span></td><td><a href='/guix/commit/scripts?id=9437fd7399425ed281e1bfc13240288ba9078caa'>build: Install .go files to $libdir/guile/X.Y.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>