[monitoring-plugins] check_icmp: Declare internal variables static

[RincewindsHat]

 Module: monitoring-plugins
 Branch: master
 Commit: 85f2e32e276ff92110f56828ac82b28007c72236
 Author: RincewindsHat <12514511+RincewindsHat at users.noreply.github.com>
   Date: Tue Oct 15 11:55:08 2024 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=85f2e32

check_icmp: Declare internal variables static

---

 plugins-root/check_icmp.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/plugins-root/check_icmp.c b/plugins-root/check_icmp.c
index 5ad1d84..d7e6ca2 100644
--- a/plugins-root/check_icmp.c
+++ b/plugins-root/check_icmp.c
@@ -247,14 +247,14 @@ static struct timeval prog_start;
 static unsigned long long max_completion_time = 0;
 static unsigned int warn_down = 1, crit_down = 1; /* host down threshold values */
 static int min_hosts_alive = -1;
-float pkt_backoff_factor = 1.5;
-float target_backoff_factor = 1.5;
-bool rta_mode = false;
-bool pl_mode = false;
-bool jitter_mode = false;
-bool score_mode = false;
-bool mos_mode = false;
-bool order_mode = false;
+static float pkt_backoff_factor = 1.5;
+static float target_backoff_factor = 1.5;
+static bool rta_mode = false;
+static bool pl_mode = false;
+static bool jitter_mode = false;
+static bool score_mode = false;
+static bool mos_mode = false;
+static bool order_mode = false;
 
 /** code start **/
 static void crash(const char *fmt, ...) {