pgsql: meson: Use consistent casing in Meson option descriptions

meson: Use consistent casing in Meson option descriptions

Meson itself uses capital letters for option descriptions, so follow
that.

Author: Tristan Partin 
Discussion: https://www.postgresql.org/message-id/flat/CSPIJVUDZFKX.3KHMOAVGF94RV%40c3po

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/529449c379b9248ad1b2b8af308799a149a6d0c1

Modified Files
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meson_options.txt | 90 +++++++++++++++++++++++++++----------------------------
1 file changed, 45 insertions(+), 45 deletions(-)