retire is_fatal for better static analysis (#797)

retire is_fatal for better static analysis (#797)

* join is_fatal lines in prep for transformation.

1,$g/is_fatal.*[^;]$/j

* replace is_fatal with if() fatal().

this allows better static analysis.

sed -i '1,$s/^\( *\)is_fatal *( *\(.*\), *MYNAME\([^;]*\);$/\1if (\2) {\n\1  fatal(MYNAME\3;\n\1}/' $file
sed -i '1,$s/^\( *\)is_fatal *( *\(.*\), *"\([^;]*\);$/\1if (\2) {\n\1  fatal("\3;\n\1}/' $file

* manual delete extra parenthesis.