src/*.c: Add newline between function return type and its name

The purpose of this change is two-fold:
- make function and variable declarations grep-friendly (one can use a
  pattern /^fn_name/ to find the definition);
- make the lines shorter, so less functions need to have their arguments
  span over many lines.

This is more grep-friendly both for finding the function definition, but
also for matching on the return type of the function or the variable.

Update tests/c-lint.sh to enforce this.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/main.c b/src/main.c
index 34214ea..a8bab28 100644
--- a/src/main.c
+++ b/src/main.c
@@ -4,13 +4,15 @@
 #include <stdlib.h>
 
 #ifdef TEST
-static void unit_tests(void) {
+static void
+unit_tests(void) {
 	unit_tests_tar();
 	unit_tests_gistatic();
 }
 #endif
 
-int main(int argc, char *argv[]) {
+int
+main(int argc, char *argv[]) {
 #ifdef TEST
 	unit_tests();
 	return EXIT_SUCCESS;