build: fix codespell errors

This fixes the following errors:

    $ make codespell
    [...]
    codespell --ignore-regex "UE|creat|doas|shotcut|ether" src test
    src/firemon/procevent.c:188: duble ==> double
    src/fnettrace/main.c:30: postive ==> positive
    src/fnettrace/main.c:30: defiend ==> defined
    src/fnettrace/main.c:482: isplay ==> display
    make: *** [Makefile:371: codespell] Error 65
    $ codespell --version
    2.2.5

Added in the following commits:

* bef5d86a1 ("increase socket buffer size for firemon, bug #2700",
  2019-09-29)
* c4962789f ("nettrace stats", 2023-08-08)

3 files changed, 3 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 3055e226a..e3e0ad551 100644
--- a/Makefile
+++ b/Makefile
@@ -368,7 +368,7 @@ scan-build: clean
 
 .PHONY: codespell
 codespell: clean
-        codespell --ignore-regex "UE|creat|doas|shotcut|ether" src test
+        codespell --ignore-regex "UE|creat|doas|ether|isplay|shotcut" src test
 
 .PHONY: print-env
 print-env:
diff --git a/src/firemon/procevent.c b/src/firemon/procevent.c
index 77739c1f3..63d69d1cd 100644
--- a/src/firemon/procevent.c
+++ b/src/firemon/procevent.c
@@ -185,7 +185,7 @@ static int procevent_netlink_setup(void) {
                 if (getsockopt(sock, SOL_SOCKET, SO_RCVBUF, &bsize, &blen) == -1)
                         fprintf(stderr, "Error: cannot read rx buffer size\n");
                 else
-                        printf("rx buffer size %d\n", bsize / 2); // the value returned is duble the real one, see man 7 socket
+                        printf("rx buffer size %d\n", bsize / 2); // the value returned is double the real one, see man 7 socket
         }
 
         // send monitoring message
diff --git a/src/fnettrace/main.c b/src/fnettrace/main.c
index a1e46f307..5a0b97e89 100644
--- a/src/fnettrace/main.c
+++ b/src/fnettrace/main.c
@@ -27,7 +27,7 @@
 
 static char *arg_log = NULL;
 
-// only 0 or negative values; postive values as defiend in RFCsq
+// only 0 or negative values; positive values as defined in RFC
 #define PROTOCOL_ICMP 0
 #define PROTOCOL_SSH -1