Script now detects binaries existence by calling shell builtin, not binaries themselves

warden3/contrib/warden_ra/warden_apply.sh

@@ -15,8 +15,9 @@ function flee { echo -e "$1"; exit $2; }
 
 [ -z "$client" -o -z "$password" ] && flee "Usage: ${0%.*} client.name password" 255
 
-openssl version >/dev/null 2>&1 || flee "Haven't found 'openssl' binary."
-curl --version >/dev/null 2>&1 || flee "Haven't found 'curl' binary."
+for n in openssl curl; do
+    command -v "$n" 2>/dev/null || flee "Haven't found $n binary."
+done
 for n in "$csr" "$key" "$cert"; do
     [ -e "$n" ] && flee "$n already exists, I won't overwrite, move them away first, please." 254
 done