adjust error message of zig run with no args

previously it said "one source file" which was not correct

1 files changed, 5 insertions, 3 deletions

diff --git a/src/main.zig b/src/main.zig
index a4c2f4f47b..433d64925d 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1266,11 +1266,13 @@ fn buildOutputType(
     }
 
     if (root_src_file == null and arg_mode == .zig_test) {
-        fatal("one zig source file is required to run `zig test`", .{});
+        fatal("`zig test` expects a zig source file argument", .{});
     }
 
-    if (link_objects.items.len == 0 and root_src_file == null and c_source_files.items.len == 0 and arg_mode == .run) {
-        fatal("one source file is required to run `zig run`", .{});
+    if (link_objects.items.len == 0 and root_src_file == null and
+        c_source_files.items.len == 0 and arg_mode == .run)
+    {
+        fatal("`zig run` expects at least one positional argument", .{});
     }
 
     const root_name = if (provided_name) |n| n else blk: {