Fix a typo in wwctl power soft help text

CONTRIBUTORS.md

@@ -39,3 +39,4 @@
 * Josh Burks <jeburks2@asu.edu>
 * Elmar Pruesse <pruessee@njhealth.org> @epruesse
 * Adam Michel <elfurbe@furbism.com> [@elfurbe](https://github.com/elfurbe)
+* Brandon Biggs <brandonsbiggs@gmail.com>

internal/app/wwctl/power/soft/root.go

@@ -10,7 +10,7 @@ var (
 		DisableFlagsInUseLine: true,
 		Use:                   "soft",
 		Short:                 "Gracefully shuts down the given node(s)",
-		Long:                  "This command uses the operationg system to shut down the set of nodes specified by PATTERN.",
+		Long:                  "This command uses the operating system to shut down the set of nodes specified by PATTERN.",
 		RunE:                  CobraRunE,
 		ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
 			if len(args) != 0 {