0.4.2: fix D-state sample merge (grep -vF '' was filtering everything; use awk dedupe)

packaging/PKGBUILD

@@ -1,6 +1,6 @@
 # Maintainer: luna <anassaeneroi@pm.me>
 pkgname=freeze-watcher
-pkgver=0.4.1
+pkgver=0.4.2
 pkgrel=1
 pkgdesc="Continuously samples system state and snapshots detailed diagnostics when freeze conditions are detected"
 arch=('any')

src/freeze-watcher.sh

@@ -254,10 +254,9 @@ capture_snapshot() {
         fi
         echo "## D-state processes (with kernel wchan)"
         # Use the snapshot taken before /proc reads to catch transient blockers.
-        # Combine 3 rapid samples (~100ms apart) and dedupe by pid.
-        echo "$dstate_immediate"
-        echo "$dstate_t1" | grep -vF "$dstate_immediate" 2>/dev/null
-        echo "$dstate_t2" | grep -vF "$dstate_immediate" | grep -vF "$dstate_t1" 2>/dev/null
+        # Combine 3 rapid samples (~100ms apart) and dedupe by pid (column 2).
+        printf '%s\n%s\n%s\n' "$dstate_immediate" "$dstate_t1" "$dstate_t2" \
+            | awk 'NF >= 4 && $1=="D" && !seen[$2]++' | head -30
         echo
         if [ "${CAPTURE_KERNEL_STACKS:-1}" = "1" ]; then
             capture_kernel_stacks