@sjaeckel integrated clang-format with formal coding style. Run his
script and commit changes.
There are pros and cons of this commit.
Mixed coding style is a "broken window". A good single style simplifies
reading and writing code.
On the other hand, this is a big change which will lead to conflicts.
In this place value of variable i is constant and predictable. No point
to clean it. Furthermore, since the value is not used after assignment,
compiler will optimize and remove the assignment.
This patch fixes a warning from the clang static analyzer.
sha1.c contains symbols that overlap with libcrypto. This patch
fixes linking with libstrophe as static library.
Prefix crypto_ will help to group other crypto API in the future.
