TA: Improve python snippet for UUID generation.

This avoids creating a previously redundant empty line and
a space which was escaped, rather than the newline.
The previous behavior caused syntax errors when copied into
a new TA.

Fixes: https://github.com/OP-TEE/optee_docs/issues/206
Signed-off-by: Till Eifert <t.eifert@uni-luebeck.de>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
diff --git a/building/trusted_applications.rst b/building/trusted_applications.rst
index 5bf1f86..5ec9ef4 100644
--- a/building/trusted_applications.rst
+++ b/building/trusted_applications.rst
@@ -290,7 +290,7 @@
            print('\n' + '#define TA_UUID\n\t{ ' + \
                  '0x{:08x}'.format(u.time_low) + ', ' + \
                  '0x{:04x}'.format(u.time_mid) + ', ' + \
-                 '0x{:04x}'.format(u.time_hi_version) + ', \\ \n\n\t\t{ ' + \
+                 '0x{:04x}'.format(u.time_hi_version) + ', \x5c\n\t\t{ ' + \
                  '0x{:02x}'.format(u.clock_seq_hi_variant) + ', ' + \
                  '0x{:02x}'.format(u.clock_seq_low) + ', ' + \
                  '0x' + ''.join(n) + '} }')"