Move usage text into usage_str var

For consistency and readability.

Note: This also makes exactly one extra blank line be printed at the end
of every usage text, which is currently only done in the following
files:

* src/fcopy/main.c
* src/fnettrace-dns/main.c
* src/fnettrace-icmp/main.c
* src/fnettrace-sni/main.c
* src/fnettrace/main.c
* src/profstats/main.c

1 files changed, 5 insertions, 2 deletions

diff --git a/src/fsec-optimize/main.c b/src/fsec-optimize/main.c
index 0bc521c0d..38ba7c697 100644
--- a/src/fsec-optimize/main.c
+++ b/src/fsec-optimize/main.c
@@ -22,9 +22,12 @@
 
 int arg_seccomp_error_action = SECCOMP_RET_ERRNO | EPERM; // error action: errno, log or kill
 
+static const char *const usage_str =
+        "Usage:\n"
+        "\tfsec-optimize file - optimize seccomp filter\n";
+
 static void usage(void) {
-        printf("Usage:\n");
-        printf("\tfsec-optimize file - optimize seccomp filter\n");
+        puts(usage_str);
 }
 
 int main(int argc, char **argv) {