Make various buffers larger

MAXLEN definitely needed to be bigger to properly format fairly common
connection strings.  In addition, the reliance on xsnprintf helps
detect cases where even this buffer is not long enough.

the buffer in parse_config has been made bigger in a bit of sloppy
programming, but what really needs to happen is reporting when a line
cannot be properly parsed/is too big for the buffer.  That is just a
kludge.

Signed-off-by: Dan Farina <drfarina@acm.org>
Signed-off-by: Peter van Hardenberg <pvh@heroku.com>

config.c

@@ -15,7 +15,7 @@ void
 parse_config(const char *config_file, char *cluster_name, int *node,
 			 char *conninfo)
 {
-	char *s, buff[256];
+	char *s, buff[1024];
 	FILE *fp = fopen (config_file, "r");
 
 	if (fp == NULL)

strutil.h

@@ -9,7 +9,7 @@
 #define _STRUTIL_H_
 
 #define QUERY_STR_LEN	 8192
-#define MAXLEN		 80
+#define MAXLEN		 1024
 
 
 extern int xsnprintf(char *str, size_t size, const char *format, ...);