calculate length of lines including backslashes correctly
-rw-r--r-- 22 .gdbinit
-rw-r--r-- 403 Makefile
-rw-r--r-- 1221 cstring.c
drwxr-xr-x - include
-rw-r--r-- 839 markdown.c
-rw-r--r-- 8721 parser.c
-rw-r--r-- 421 sample.md
drwxr-xr-x - test
-rw-r--r-- 1998 tmp.c