Add space between command and arguments when executing linux command …

…to open browser. Refs #682 (#683)

Co-authored-by: Ric Emery <[email protected]>

msal4j-sdk/src/main/java/com/microsoft/aad/msal4j/AcquireTokenByInteractiveFlowSupplier.java

@@ -182,7 +182,7 @@ private static void openDefaultSystemBrowserInLinux(URL url){
             if (openToolPath != null) {
                 Runtime runtime = Runtime.getRuntime();
                 try {
-                    runtime.exec(openTool + url);
+                    runtime.exec(openTool + " " + url);
                 } catch (IOException e) {
                     throw new RuntimeException(e);
                 }