zstd: fix compilation with Solaris Studio
Without these changes, Solaris Studio (12.4) gives us "syntax error: empty
declaration" on these two lines.
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true