improved locality of defer

Author: John Bute

Sources/SwiftlyCore/Platform.swift

@@ -209,12 +209,13 @@ extension Platform {
         if pgid != -1 {
             tcsetpgrp(STDOUT_FILENO, process.processIdentifier)
         }
-        process.waitUntilExit()
 
         defer { if pgid != -1 {
             tcsetpgrp(STDOUT_FILENO, pgid)
         }}
 
+        process.waitUntilExit()
+
         guard process.terminationStatus == 0 else {
             throw RunProgramError(exitCode: process.terminationStatus, program: args.first!)
         }
@@ -254,14 +255,14 @@ extension Platform {
         if pgid != -1 {
             tcsetpgrp(STDOUT_FILENO, process.processIdentifier)
         }
-        let outData = try outPipe.fileHandleForReading.readToEnd()
-
-        process.waitUntilExit()
-
         defer { if pgid != -1 {
             tcsetpgrp(STDOUT_FILENO, pgid)
         }}
 
+        let outData = try outPipe.fileHandleForReading.readToEnd()
+
+        process.waitUntilExit()
+
         guard process.terminationStatus == 0 else {
             throw RunProgramError(exitCode: process.terminationStatus, program: args.first!)
         }