Fix bashism in startkde.suse.sh script

Builtin command 'source' may be unsupported in some POSIX-complete
shells. So replace it to standard '.' (dot).
Fix bashism in startkde.suse.sh script

${parameter:offset} substitution may be unsupported is some
POSIX-complete shell.
So replace ${parameter:1} substitution with ${parameter#?} one.
Fix bashism in startkde.suse.sh script

'-e' option of 'echo' builtin may be unsupported in some POSIX-complete
shells.
So replace 'echo -e ...' with two simple 'echo ...' commands.