Add PGFILEDESC description to Makefiles.

Prominent binaries already had this metadata.

This commit is inspried by the change of pg_trgm:
0ffc201a51395ca71fe429ef86c872850a5850ee

Backpatch to all branches.

Beena Emerson

diff --git a/Makefile b/Makefile
index 403d702..f7b3d29 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,7 @@ OBJS = bigm_op.o bigm_gin.o
 
 EXTENSION = pg_bigm
 DATA = pg_bigm--1.1.sql pg_bigm--1.0--1.1.sql
+PGFILEDESC = "pg_bigm - bigram matching"
 
 REGRESS = pg_bigm pg_bigm_ja