Standardize usage string var declarations

Changes:

* Name them all "usage_str"
* Make them const

For the latter item, see commit eb20f52ef ("Make list of paths const to
fix a false positive of gcc analyzer", 2022-07-27) / PR #5275.

4 files changed, 5 insertions, 5 deletions

diff --git a/src/firecfg/main.c b/src/firecfg/main.c
index c9dc27b1b..855523e55 100644
--- a/src/firecfg/main.c
+++ b/src/firecfg/main.c
@@ -24,7 +24,7 @@ int arg_debug = 0;
 char *arg_bindir = "/usr/local/bin";
 int arg_guide = 0;
 
-static char *usage_str =
+static const char *const usage_str =
         "Firecfg is the desktop configuration utility for Firejail software. The utility\n"
         "creates several symbolic links to firejail executable. This allows the user to\n"
         "sandbox applications automatically, just by clicking on a regular desktop\n"
diff --git a/src/firejail/usage.c b/src/firejail/usage.c
index 35f54d113..00a86f426 100644
--- a/src/firejail/usage.c
+++ b/src/firejail/usage.c
@@ -19,7 +19,7 @@
 */
 #include "firejail.h"
 
-static char *usage_str =
+static const char *const usage_str =
         "Firejail is a SUID sandbox program that reduces the risk of security breaches by\n"
         "restricting the running environment of untrusted applications using Linux\n"
         "namespaces.\n"
diff --git a/src/firemon/usage.c b/src/firemon/usage.c
index 0fb9908c5..411fc1600 100644
--- a/src/firemon/usage.c
+++ b/src/firemon/usage.c
@@ -19,7 +19,7 @@
 */
 #include "firemon.h"
 
-static char *help_str =
+static const char *const usage_str =
         "Usage: firemon [OPTIONS] [PID]\n\n"
         "Monitor processes started in a Firejail sandbox. Without any PID specified,\n"
         "all processes started by Firejail are monitored. Descendants of these processes\n"
@@ -84,5 +84,5 @@ void print_version(void) {
 
 void usage(void) {
         print_version();
-        puts(help_str);
+        puts(usage_str);
 }
diff --git a/src/jailcheck/main.c b/src/jailcheck/main.c
index e30ffb274..27da309ea 100644
--- a/src/jailcheck/main.c
+++ b/src/jailcheck/main.c
@@ -29,7 +29,7 @@ char *user_home_dir = NULL;
 char *user_run_dir = NULL;
 int arg_debug = 0;
 
-static char *usage_str =
+static const char *const usage_str =
         "Usage: jailcheck [options] directory [directory]\n\n"
         "Options:\n"
         "   --debug - print debug messages.\n"