libcollectdclient: increase error buffer

libcollectdclient: increase error buffer

make[1]: Entering directory '/home/ruben/src/collectd'
  CC       src/libcollectdclient/libcollectdclient_la-client.lo
src/libcollectdclient/client.c: In function ‘lcc_getval’:
src/libcollectdclient/client.c:621:23: warning: ‘%s’ directive output may be truncated writing up to 1023 bytes into a region of size 1010 [-Wformat-truncation=]
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
                       ^                   ~
src/libcollectdclient/client.c:94:48: note: in definition of macro ‘LCC_SET_ERRSTR’
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
                                                ^~~~~~~~~~~
src/libcollectdclient/client.c:94:5: note: ‘snprintf’ output between 15 and 1038 bytes into a destination of size 1024
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/libcollectdclient/client.c:621:5: note: in expansion of macro ‘LCC_SET_ERRSTR’
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
     ^~~~~~~~~~~~~~
src/libcollectdclient/client.c: In function ‘lcc_putval’:
src/libcollectdclient/client.c:754:23: warning: ‘%s’ directive output may be truncated writing up to 1023 bytes into a region of size 1010 [-Wformat-truncation=]
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
                       ^                   ~
src/libcollectdclient/client.c:94:48: note: in definition of macro ‘LCC_SET_ERRSTR’
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
                                                ^~~~~~~~~~~
src/libcollectdclient/client.c:94:5: note: ‘snprintf’ output between 15 and 1038 bytes into a destination of size 1024
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/libcollectdclient/client.c:754:5: note: in expansion of macro ‘LCC_SET_ERRSTR’
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
     ^~~~~~~~~~~~~~
src/libcollectdclient/client.c: In function ‘lcc_flush’:
src/libcollectdclient/client.c:802:23: warning: ‘%s’ directive output may be truncated writing up to 1023 bytes into a region of size 1010 [-Wformat-truncation=]
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
                       ^                   ~
src/libcollectdclient/client.c:94:48: note: in definition of macro ‘LCC_SET_ERRSTR’
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
                                                ^~~~~~~~~~~
src/libcollectdclient/client.c:94:5: note: ‘snprintf’ output between 15 and 1038 bytes into a destination of size 1024
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/libcollectdclient/client.c:802:5: note: in expansion of macro ‘LCC_SET_ERRSTR’
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
     ^~~~~~~~~~~~~~
src/libcollectdclient/client.c: In function ‘lcc_listval’:
src/libcollectdclient/client.c:834:23: warning: ‘%s’ directive output may be truncated writing up to 1023 bytes into a region of size 1010 [-Wformat-truncation=]
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
                       ^                   ~
src/libcollectdclient/client.c:94:48: note: in definition of macro ‘LCC_SET_ERRSTR’
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
                                                ^~~~~~~~~~~
src/libcollectdclient/client.c:94:5: note: ‘snprintf’ output between 15 and 1038 bytes into a destination of size 1024
     snprintf((c)->errbuf, sizeof((c)->errbuf), __VA_ARGS__);                   \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/libcollectdclient/client.c:834:5: note: in expansion of macro ‘LCC_SET_ERRSTR’
     LCC_SET_ERRSTR(c, "Server error: %s", res.message);
     ^~~~~~~~~~~~~~

Fixes #2200