Bug#258713: problem of env unset in init-script

[Victor Hsieh <victor@csie.org>]

Package: apache2-common
Version: 2.0.50-5
Followup-For: Bug #258713


In the init-script, I have a problem of env unsetting.  The command with
a problem is

    for envkey in `env|grep -v "^ " | cut -d'=' -f1`

In my case, "grep -v" won't filter out ":DO" and the following lines
(see the following).  So I suggest we can rewrite the former command like

    for envkey in `env|grep -v "^[ \t]" | cut -d'=' -f1`

The env var which cause the fault, read by grep:

TERMCAP=SC|screen|VT 100/ANSI X3.64 virtual terminal:\
	:DO=\E[%dB:LE=\E[%dD:RI=\E[%dC:UP=\E[%dA:bs:bt=\E[Z:\
	:cd=\E[J:ce=\E[K:cl=\E[H\E[J:cm=\E[%i%d;%dH:ct=\E[3g:\
	:do=^J:nd=\E[C:pt:rc=\E8:rs=\Ec:sc=\E7:st=\EH:up=\EM:\
	:le=^H:bl=^G:cr=^M:it#8:ho=\E[H:nw=\EE:ta=^I:is=\E)0:\
	:li#24:co#80:am:xn:xv:LP:sr=\EM:al=\E[L:AL=\E[%dL:\
	:cs=\E[%i%d;%dr:dl=\E[M:DL=\E[%dM:dc=\E[P:DC=\E[%dP:\
	:im=\E[4h:ei=\E[4l:mi:IC=\E[%d@:ks=\E[?1h\E=:\
	:ke=\E[?1l\E>:vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l:\
	:ti=\E[?1049h:te=\E[?1049l:us=\E[4m:ue=\E[24m:so=\E[3m:\
	:se=\E[23m:md=\E[1m:mr=\E[7m:me=\E[m:ms:\
	:Co#8:pa#64:AF=\E[3%dm:AB=\E[4%dm:op=\E[39;49m:AX:G0:\
	:as=\E(0:ae=\E(B:\
	:ac=\140\140aaffggjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~..--++,,hhII00:\
	:k0=\E[10~:k1=\EOP:k2=\EOQ:k3=\EOR:k4=\EOS:k5=\E[15~:\
	:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:k;=\E[21~:\
	:F1=\E[23~:F2=\E[24~:kb=:kh=\E[1~:@1=\E[1~:kH=\E[4~:\
	:@7=\E[4~:kN=\E[6~:kP=\E[5~:kI=\E[2~:kD=\E[3~:ku=\EOA:\
	:kd=\EOB:kr=\EOC:kl=\EOD:km:

Best,
Victor

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.7-rc2
Locale: LANG=zh_TW.UTF-8, LC_CTYPE=zh_TW.UTF-8

Versions of packages apache2-common depends on:
ii  debconf                     1.4.29       Debian configuration management sy
ii  debianutils                 2.8.4        Miscellaneous utilities specific t
ii  libapr0                     2.0.50-5     The Apache Portable Runtime
ii  libc6                       2.3.2.ds1-12 GNU C Library: Shared libraries an
ii  libdb4.2                    4.2.52-16    Berkeley v4.2 Database Libraries [
ii  libexpat1                   1.95.6-8     XML parsing C library - runtime li
ii  libldap2                    2.1.30-2     OpenLDAP libraries
ii  libmagic1                   4.09-1       File type determination library us
ii  libssl0.9.7                 0.9.7d-4     SSL shared libraries
ii  mime-support                3.28-1       MIME files 'mime.types' & 'mailcap
ii  net-tools                   1.60-10      The NET-3 networking toolkit
ii  openssl                     0.9.7d-4     Secure Socket Layer (SSL) binary a
ii  ssl-cert                    1.0-8        Simple debconf wrapper for openssl
ii  zlib1g                      1:1.2.1.1-5  compression library - runtime

-- no debconf information