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, 30 insertions, 27 deletions

diff --git a/src/fseccomp/main.c b/src/fseccomp/main.c
index 0b46daf65..e7823d3c5 100644
--- a/src/fseccomp/main.c
+++ b/src/fseccomp/main.c
@@ -22,34 +22,37 @@
 int arg_quiet = 0;
 int arg_seccomp_error_action = SECCOMP_RET_ERRNO | EPERM; // error action: errno, log or kill
 
+static const char *const usage_str =
+        "Usage:\n"
+        "\tfseccomp debug-syscalls\n"
+        "\tfseccomp debug-syscalls32\n"
+        "\tfseccomp debug-errnos\n"
+        "\tfseccomp debug-protocols\n"
+        "\tfseccomp protocol build list file\n"
+        "\tfseccomp secondary 64 file\n"
+        "\tfseccomp secondary 32 file\n"
+        "\tfseccomp secondary block file\n"
+        "\tfseccomp default file\n"
+        "\tfseccomp default file allow-debuggers\n"
+        "\tfseccomp default32 file\n"
+        "\tfseccomp default32 file allow-debuggers\n"
+        "\tfseccomp drop file1 file2 list\n"
+        "\tfseccomp drop file1 file2 list allow-debuggers\n"
+        "\tfseccomp drop32 file1 file2 list\n"
+        "\tfseccomp drop32 file1 file2 list allow-debuggers\n"
+        "\tfseccomp default drop file1 file2 list\n"
+        "\tfseccomp default drop file1 file2 list allow-debuggers\n"
+        "\tfseccomp default32 drop file1 file2 list\n"
+        "\tfseccomp default32 drop file1 file2 list allow-debuggers\n"
+        "\tfseccomp keep file1 file2 list\n"
+        "\tfseccomp keep32 file1 file2 list\n"
+        "\tfseccomp memory-deny-write-execute file\n"
+        "\tfseccomp memory-deny-write-execute.32 file\n"
+        "\tfseccomp restrict-namespaces file list\n"
+        "\tfseccomp restrict-namespaces.32 file list\n";
+
 static void usage(void) {
-        printf("Usage:\n"
-                "\tfseccomp debug-syscalls\n"
-                "\tfseccomp debug-syscalls32\n"
-                "\tfseccomp debug-errnos\n"
-                "\tfseccomp debug-protocols\n"
-                "\tfseccomp protocol build list file\n"
-                "\tfseccomp secondary 64 file\n"
-                "\tfseccomp secondary 32 file\n"
-                "\tfseccomp secondary block file\n"
-                "\tfseccomp default file\n"
-                "\tfseccomp default file allow-debuggers\n"
-                "\tfseccomp default32 file\n"
-                "\tfseccomp default32 file allow-debuggers\n"
-                "\tfseccomp drop file1 file2 list\n"
-                "\tfseccomp drop file1 file2 list allow-debuggers\n"
-                "\tfseccomp drop32 file1 file2 list\n"
-                "\tfseccomp drop32 file1 file2 list allow-debuggers\n"
-                "\tfseccomp default drop file1 file2 list\n"
-                "\tfseccomp default drop file1 file2 list allow-debuggers\n"
-                "\tfseccomp default32 drop file1 file2 list\n"
-                "\tfseccomp default32 drop file1 file2 list allow-debuggers\n"
-                "\tfseccomp keep file1 file2 list\n"
-                "\tfseccomp keep32 file1 file2 list\n"
-                "\tfseccomp memory-deny-write-execute file\n"
-                "\tfseccomp memory-deny-write-execute.32 file\n"
-                "\tfseccomp restrict-namespaces file list\n"
-                "\tfseccomp restrict-namespaces.32 file list\n");
+        puts(usage_str);
 }
 
 int main(int argc, char **argv) {