docs: Fix a try-catch example (fix #1558, #1777) (#2605)

docs/content/manual/v1.5/manual.yml

@@ -1920,7 +1920,7 @@ sections:
               # Repeat an expression until it raises "break" as an
               # error, then stop repeating without re-raising the error.
               # But if the error caught is not "break" then re-raise it.
-              try repeat(exp) catch .=="break" then empty else error;
+              try repeat(exp) catch if .=="break" then empty else error
 
           jq has a syntax for named lexical labels to "break" or "go (back) to":