rename JournalPriority::as_str to as_journald_str

hive-sh4re/src/lib.rs

@@ -774,9 +774,13 @@ pub enum JournalPriority {
 }
 
 impl JournalPriority {
-    /// Returns the lowercase string journalctl expects for `-p`.
+    /// Returns the lowercase string journalctl expects for `-p`. Named
+    /// `as_journald_str` (not `as_str`) because this is a specific
+    /// external-tool encoding, not the enum's general wire/db string —
+    /// distinct call sites shouldn't reach for this by accident when they
+    /// actually want the serde wire representation.
     #[must_use]
-    pub fn as_str(self) -> &'static str {
+    pub fn as_journald_str(self) -> &'static str {
         match self {
             Self::Emerg => "emerg",
             Self::Alert => "alert",