swab(1): uses default for promises

src/hru.rs

@@ -95,7 +95,7 @@ fn main() -> ExitCode {
 
 	#[cfg(target_os="openbsd")] {
 		let promises = Promises::new("stdio unveil");
-		if let Err(e) = pledge(Some(promises), None) {
+		if let Err(e) = pledge(Some(promises), Some(Promises::default())) {
 			return err(&argv[0], e.strerror(), Some(EX_OSERR));
 		}
 

src/intcmp.rs

@@ -49,7 +49,7 @@ fn main() -> ExitCode {
 
 	#[cfg(target_os="openbsd")] {
 		let promises = Promises::new("stdio unveil");
-		if let Err(e) = pledge(Some(promises), None) {
+		if let Err(e) = pledge(Some(promises), Some(Promises::default())) {
 			return err(&argv[0], e.strerror(), EX_OSERR);
 		}
 

src/libopenbsd.rs

@@ -43,6 +43,10 @@ impl Promises {
 	}
 }
 
+impl Default for Promises {
+	fn default() -> Self { Promises::new("") }
+}
+
 pub fn pledge(
 	promises: Option<Promises>, execpromises: Option<Promises>
 ) -> Result<(), Error> {

src/mm.rs

@@ -62,7 +62,7 @@ fn main() -> ExitCode {
 
 	#[cfg(target_os="openbsd")] {
 		let promises = Promises::new("cpath rpath stdio unveil wpath");
-		if let Err(e) = pledge(Some(promises), None) {
+		if let Err(e) = pledge(Some(promises), Some(Promises::default())) {
 			return err(&argv[0], e, Some(EX_OSERR));
 		}
 	}

src/rpn.rs

@@ -231,7 +231,7 @@ fn main() -> ExitCode {
 
 	#[cfg(target_os="openbsd")] {
 		let promises = Promises::new("stdio unveil");
-		if let Err(e) = pledge(Some(promises), None) {
+		if let Err(e) = pledge(Some(promises), Some(Promises::default())) {
 			return err(&argv[0], &e, Some(EX_OSERR));
 		}
 

src/swab.rs

@@ -50,7 +50,7 @@ fn main() -> ExitCode {
 	
 	#[cfg(target_os="openbsd")] {
 		let promises = Promises::new("stdio unveil");
-		if let Err(e) = pledge(Some(promises), None) {
+		if let Err(e) = pledge(Some(promises), Some(Promises::default())) {
 			return err(&argv[0], e, EX_OSERR);
 		}