diff --git a/cmd/oapi-codegen/oapi-codegen.go b/cmd/oapi-codegen/oapi-codegen.go
index af4361004b..09990d61c9 100644
--- a/cmd/oapi-codegen/oapi-codegen.go
+++ b/cmd/oapi-codegen/oapi-codegen.go
@@ -79,27 +79,27 @@ type oldConfiguration struct {
 }
 
 func main() {
-	flag.StringVar(&flagOutputFile, "o", "", "Where to output generated code, stdout is default")
-	flag.BoolVar(&flagOldConfigStyle, "old-config-style", false, "whether to use the older style config file format")
-	flag.BoolVar(&flagOutputConfig, "output-config", false, "when true, outputs a configuration file for oapi-codegen using current settings")
-	flag.StringVar(&flagConfigFile, "config", "", "a YAML config file that controls oapi-codegen behavior")
-	flag.BoolVar(&flagPrintVersion, "version", false, "when specified, print version and exit")
-	flag.StringVar(&flagPackageName, "package", "", "The package name for generated code")
-	flag.BoolVar(&flagPrintUsage, "help", false, "show this help and exit")
-	flag.BoolVar(&flagPrintUsage, "h", false, "same as -help")
+	flag.StringVar(&flagOutputFile, "o", "", "Where to output generated code, stdout is default.")
+	flag.BoolVar(&flagOldConfigStyle, "old-config-style", false, "Whether to use the older style config file format.")
+	flag.BoolVar(&flagOutputConfig, "output-config", false, "When true, outputs a configuration file for oapi-codegen using current settings.")
+	flag.StringVar(&flagConfigFile, "config", "", "A YAML config file that controls oapi-codegen behavior.")
+	flag.BoolVar(&flagPrintVersion, "version", false, "When specified, print version and exit.")
+	flag.StringVar(&flagPackageName, "package", "", "The package name for generated code.")
+	flag.BoolVar(&flagPrintUsage, "help", false, "Show this help and exit.")
+	flag.BoolVar(&flagPrintUsage, "h", false, "Same as -help.")
 
 	// All flags below are deprecated, and will be removed in a future release. Please do not
 	// update their behavior.
 	flag.StringVar(&flagGenerate, "generate", "types,client,server,spec",
-		`Comma-separated list of code to generate; valid options: "types", "client", "chi-server", "server", "gin", "gorilla", "spec", "skip-fmt", "skip-prune"`)
+		`Comma-separated list of code to generate; valid options: "types", "client", "chi-server", "server", "gin", "gorilla", "spec", "skip-fmt", "skip-prune".`)
 	flag.StringVar(&flagIncludeTags, "include-tags", "", "Only include operations with the given tags. Comma-separated list of tags.")
 	flag.StringVar(&flagExcludeTags, "exclude-tags", "", "Exclude operations that are tagged with the given tags. Comma-separated list of tags.")
-	flag.StringVar(&flagTemplatesDir, "templates", "", "Path to directory containing user templates")
-	flag.StringVar(&flagImportMapping, "import-mapping", "", "A dict from the external reference to golang package path")
-	flag.StringVar(&flagExcludeSchemas, "exclude-schemas", "", "A comma separated list of schemas which must be excluded from generation")
-	flag.StringVar(&flagResponseTypeSuffix, "response-type-suffix", "", "the suffix used for responses types")
-	flag.BoolVar(&flagAliasTypes, "alias-types", false, "Alias type declarations of possible")
-	flag.BoolVar(&flagInitalismOverrides, "initialism-overrides", false, "Use initialism overrides")
+	flag.StringVar(&flagTemplatesDir, "templates", "", "Path to directory containing user templates.")
+	flag.StringVar(&flagImportMapping, "import-mapping", "", "A dict from the external reference to golang package path.")
+	flag.StringVar(&flagExcludeSchemas, "exclude-schemas", "", "A comma separated list of schemas which must be excluded from generation.")
+	flag.StringVar(&flagResponseTypeSuffix, "response-type-suffix", "", "The suffix used for responses types.")
+	flag.BoolVar(&flagAliasTypes, "alias-types", false, "Alias type declarations of possible.")
+	flag.BoolVar(&flagInitalismOverrides, "initialism-overrides", false, "Use initialism overrides.")
 
 	flag.Parse()