added a space when rendering some expressions so they're more readable

src/Expr.cc

@@ -30,6 +30,11 @@
 namespace zeek::detail {
 
 const char* expr_name(ExprTag t) {
+    // Note that some of the names in the following have trailing spaces.
+    // These are for unary operations that (1) are identified by names
+    // rather than symbols, and (2) don't have custom ExprDescribe printers.
+    // Adding the spaces here lets them leverage the UnaryExpr::ExprDescribe
+    // method without it having to know about such expressions.
     static const char* expr_names[int(NUM_EXPRS)] = {
         "name",
         "const",