tunnel: add quotes around calling package

Judging by the previous check, this was clearly intended.

Signed-off-by: Jason A. Donenfeld <[email protected]>

Author: zx2c4

tunnel/src/main/java/com/wireguard/android/util/RootShell.java

@@ -46,7 +46,7 @@ public RootShell(final Context context) {
         final String packageName = context.getPackageName();
         if (packageName.contains("'"))
             throw new RuntimeException("Impossibly invalid package name contains a single quote");
-        preamble = String.format("export CALLING_PACKAGE=%s PATH=\"%s:$PATH\" TMPDIR='%s'; magisk --sqlite \"UPDATE policies SET notification=0, logging=0 WHERE uid=%d\" >/dev/null 2>&1; id -u\n",
+        preamble = String.format("export CALLING_PACKAGE='%s' PATH=\"%s:$PATH\" TMPDIR='%s'; magisk --sqlite \"UPDATE policies SET notification=0, logging=0 WHERE uid=%d\" >/dev/null 2>&1; id -u\n",
                 packageName, localBinaryDir, localTemporaryDir, android.os.Process.myUid());
     }