modif: drop deprecated 'shell' option references (#5894)

The `shell` option has been removed. Remove stale references.

This does NOT remove `shell none`-related code comments in:

- src/firejail/fs_lib.c (L433-L441)
- src/firejail/join.c (L415-L417)

Relates to #5196.

Suggested by #5891.

2 files changed, 3 insertions, 3 deletions

diff --git a/src/firejail/main.c b/src/firejail/main.c
index 45b199db4..b0d5dac17 100644
--- a/src/firejail/main.c
+++ b/src/firejail/main.c
@@ -2806,7 +2806,7 @@ int main(int argc, char **argv, char **envp) {
                         // already handled
                 }
                 else if (strncmp(argv[i], "--shell=", 8) == 0) {
-                        fprintf(stderr, "Warning: --shell feature has been deprecated\n");
+                        fprintf(stderr, "Error: \"shell none\" is done by default now; the \"shell\" command has been removed\n");
                         exit(1);
                 }
                 else if (strcmp(argv[i], "-c") == 0) {
diff --git a/src/firejail/profile.c b/src/firejail/profile.c
index 07449f646..bdaaed433 100644
--- a/src/firejail/profile.c
+++ b/src/firejail/profile.c
@@ -371,8 +371,8 @@ int profile_check_line(char *ptr, int lineno, const char *fname) {
                 arg_caps_drop_all = 1;
                 return 0;
         }
-        else if (strcmp(ptr, "shell none") == 0) {
-                fprintf(stderr, "Warning: \"shell none\" command in the profile file is done by default; the command will be deprecated\n");
+        else if (strcmp(ptr, "shell ") == 0) {
+                fprintf(stderr, "Warning: \"shell none\" is done by default now; the \"shell\" command has been removed\n");
                 return 0;
         }
         else if (strcmp(ptr, "tracelog") == 0) {