Cargo.toml: Reformat features

Author: mkroening

hermit-sys/Cargo.toml

@@ -14,19 +14,28 @@ edition = "2021"
 documentation = "https://hermitcore.github.io/rusty-hermit/hermit_sys"
 
 [features]
-default = ["pci", "acpi", "smp", "fsgsbase"]
-# controls whether RustyHermit is build with -Z instrument-mcount
-instrument = ["rftrace"]
-trace = []
+default = [
+    "acpi",
+    "pci",
+    "smp",
+    "fsgsbase",
+]
+
+aarch64-qemu-stdout = []
+acpi = []
+dhcpv4 = ["smoltcp/proto-dhcpv4"]
 fsgsbase = []
+
+# Build the kernel with function instrument code for mcount-based tracing
+instrument = ["rftrace"]
+
 pci = []
-acpi = []
+smp = []
+trace = []
 vga = []
-dhcpv4 = ["smoltcp/proto-dhcpv4"]
-# only for internal usage, please don't use it
+
+# Internal feature for building the kernel from local sources
 with_submodule = []
-smp = []
-aarch64-qemu-stdout = []
 
 [build-dependencies]
 walkdir = "2"