lib,wcc,w6a,w6l: char-literals for remaining source magic decimals (Wave-1)

lib/os/os.ww

@@ -324,7 +324,7 @@ export fn mkdirs(path: str, mode: i32) (void | oserror) = {
 	// trigger an empty mkdir.
 	let i: i32 = 1;
 	for (i < n) {
-		if (pathbuf[i] == 47u8) {	// '/'
+		if (pathbuf[i] == '/') {
 			pathbuf[i] = 0u8;
 			let r: i32 = syscall2(nr.MKDIR,
 			    (&pathbuf[0]): i64, mode: i64): i32;
@@ -443,7 +443,7 @@ export fn getenv(name: str) (str | void) = {
 			j += 1;
 		};
 		if (matched) {
-			if (entry[name.len] == 61u8) {	// '='
+			if (entry[name.len] == '=') {
 				let val: *u8 = entry + ((name.len + 1): u64);
 				let n: i32 = 0;
 				for (val[n] != 0u8) { n += 1; };