fix typo in msg

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@204 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Default svgalib to none if doesn't appear to be installed

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@205 9d0c8265-081b-0410-96cb-a4ca84ce46f8
embellish bad magic number error message

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@209 9d0c8265-081b-0410-96cb-a4ca84ce46f8
cleanup

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@210 9d0c8265-081b-0410-96cb-a4ca84ce46f8
cleanup

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@211 9d0c8265-081b-0410-96cb-a4ca84ce46f8
cleanup

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@212 9d0c8265-081b-0410-96cb-a4ca84ce46f8
cleanup

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@214 9d0c8265-081b-0410-96cb-a4ca84ce46f8
cleanup

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@215 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Add --repair option to Giftopnm

git-svn-id: svn://svn.code.sf.net/p/netpbm/code/trunk@217 9d0c8265-081b-0410-96cb-a4ca84ce46f8