Fixed parsing of e.g.:
${f🅰️${var1}:${var2}}
If var1 wasn't defined it was incorrectly parsed as:
f🅰️${var1
I.e. it resulted in invalid number of parameters error, as the
called function was missing the second parameter.
Now with bot variables undefined it parses as:
f🅰️${var1}:${var2}
I.e. it resulted in correct number of parameters even with
undefined variables.
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
bb2fe7440d