Preprocessor: remove spurious space produced when parsing key/value pairs

The problem had been introduced by the previous preprocessor submodule update.

Preprocessor: remove spurious space produced when parsing key/value pairs
The problem had been introduced by the previous preprocessor submodule update.
de0b9c46 · Sébastien Villemot · 67524268 · 29b3b744 · f0d67b01 · 29b3b744
Unverified Commit de0b9c46 authored Feb 26, 2021 by Sébastien Villemot
--- a/preprocessor @ 29b3b744
+++ b/preprocessor @ 29b3b744
-Subproject commit f0d67b01dd45fe2e720fb2aba2595e56c189b396
+Subproject commit 29b3b744ef01b30118daa9568fe0e8adaa86ef1b