Those files (“.c”, “.cmake”, “.md”, “.txt”, “.h”, “.s” and “.sct”) should not need to have the executable attribute at all, need to remove the executable attribute from them.
It uses "\r\n" as a line break in Windows files which is different from Linux file. In Linux, one line is ended by "\n". So the line break for those files with Windows format is shown as "^M" in the Linux system. It needs to correct them too.