efi_loader: merge adjacent sprintf()

In the implementation of the device path to text protocol join adjacent
sprintf() statements.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index f3a9579..96fd089 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -79,9 +79,8 @@
 		struct efi_device_path_acpi_path *adp =
 			(struct efi_device_path_acpi_path *)dp;
 
-		s += sprintf(s, "Acpi(PNP%04X", EISA_PNP_NUM(adp->hid));
-		s += sprintf(s, ",%d", adp->uid);
-		s += sprintf(s, ")");
+		s += sprintf(s, "Acpi(PNP%04X,%d)", EISA_PNP_NUM(adp->hid),
+			     adp->uid);
 		break;
 	}
 	default: