Fix API lint copy command

The space after the backtick prevents it working when copy-pasting it
into the shell.

Test: create lint error => m => cp/pasted command runs successfully
Change-Id: I42b8b60d01dcaed34dbde0390eb1691d656a32cf

java/droiddoc.go

@@ -1521,9 +1521,9 @@ func (d *Droidstubs) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 			msg += fmt.Sprintf(``+
 				`2. You can update the baseline by executing the following\n`+
 				`   command:\n`+
-				`       cp \\ \n`+
-				`       "'"$PWD"$'/%s" \\ \n`+
-				`       "'"$PWD"$'/%s" \n`+
+				`       cp \\\n`+
+				`       "'"$PWD"$'/%s" \\\n`+
+				`       "'"$PWD"$'/%s"\n`+
 				`   To submit the revised baseline.txt to the main Android\n`+
 				`   repository, you will need approval.\n`, updatedBaselineOutput, baselineFile.Path())
 		} else {