chomp PQerrorMessage() in backend uses

PQerrorMessage() returns an error message with a trailing newline, but
in backend use (dblink, postgres_fdw, libpqwalreceiver), we want to have
the error message without that for emitting via ereport().  To simplify
that, add a function pchomp() that returns a pstrdup'ed string with the
trailing newline characters removed.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/include/utils/palloc.h b/src/include/utils/palloc.h
index b72fe4aee8..2e07bd57ad 100644
--- a/src/include/utils/palloc.h
+++ b/src/include/utils/palloc.h
@@ -127,6 +127,8 @@ extern char *MemoryContextStrdup(MemoryContext context, const char *string);
 extern char *pstrdup(const char *in);
 extern char *pnstrdup(const char *in, Size len);
 
+extern char *pchomp(const char *in);
+
 /* sprintf into a palloc'd buffer --- these are in psprintf.c */
 extern char *psprintf(const char *fmt,...) pg_attribute_printf(1, 2);
 extern size_t pvsnprintf(char *buf, size_t len, const char *fmt, va_list args) pg_attribute_printf(3, 0);