Fix comments to stop referring to error codes as negative.
tree9d4947444e974f8e9a5b566749acf2062e549ded
-rw-r--r-- 3647 .clang-format
-rw-r--r-- 12149 .gitignore
-rw-r--r-- 18097 HelenOS.config
-rw-r--r-- 4753 Makefile
-rw-r--r-- 3708 README.md
drwxr-xr-x - abi
drwxr-xr-x - boot
drwxr-xr-x - contrib
drwxr-xr-x - defaults
drwxr-xr-x - doxygen
drwxr-xr-x - kernel
drwxr-xr-x - release
drwxr-xr-x - tools
drwxr-xr-x - uspace
-rw-r--r-- 1950 version