Thread: pgsql: Unify src/common/'s definitions of MaxAllocSize.

Unify src/common/'s definitions of MaxAllocSize.

As threatened in the previous patch, define MaxAllocSize in
src/include/common/fe_memutils.h rather than having several
copies of it in different src/common/*.c files.  This also
provides an opportunity to document it better.

While this would probably be safe to back-patch, I'll refrain
(for now anyway).

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/11b7de4a784135d7a9bce4a29ede092797749efc

Modified Files
--------------
src/common/psprintf.c            |  3 ---
src/common/saslprep.c            |  4 ----
src/common/stringinfo.c          |  3 ---
src/include/common/fe_memutils.h | 12 ++++++++++++
4 files changed, 12 insertions(+), 10 deletions(-)