test: test-config-parse-logsize: Fix invalid size_t format specifier

Caught by building under bitbake:

```
| arm-openbmc-linux-gnueabi-gcc -march=armv7-a -mfpu=vfpv4-d16 -mfloat-abi=hard -fstack-protector-strong -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/recipe-sysroot -Itest/test-config-parse-logsize.p -Itest -I../git/test -I. -I../git -flto=auto -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Wpedantic -Werror -std=gnu17 -D_GNU_SOURCE -O2 -pipe -g -feliminate-unused-debug-types -fmacro-prefix-map=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/git=/usr/src/debug/obmc-console/1.0+gitAUTOINC+533f9702a3-r1 -fdebug-prefix-map=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/git=/usr/src/debug/obmc-console/1.0+gitAUTOINC+533f9702a3-r1 -fmacro-prefix-map=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/build=/usr/src/debug/obmc-console/1.0+gitAUTOINC+533f9702a3-r1 -fdebug-prefix-map=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/build=/usr/src/debug/obmc-console/1.0+gitAUTOINC+533f9702a3-r1 -fdebug-prefix-map=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/recipe-sysroot= -fmacro-prefix-map=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/recipe-sysroot= -fdebug-prefix-map=/var/tmp/bitbake/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-console/1.0+gitAUTOINC+533f9702a3-r1/recipe-sysroot-native= -fpic -O2 '-DSYSCONFDIR=""' -MD -MQ test/test-config-parse-logsize.p/test-config-parse-logsize.c.o -MF test/test-config-parse-logsize.p/test-config-parse-logsize.c.o.d -o test/test-config-parse-logsize.p/test-config-parse-logsize.c.o -c ../git/test/test-config-parse-logsize.c
| ../git/test/test-config-parse-logsize.c: In function 'test_config_parse_logsize':
| ../git/test/test-config-parse-logsize.c:56:60: error: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
|    56 |                         warn("[%zu] Str %s expected size %lu, got size %lu\n",
|       |                                                          ~~^
|       |                                                            |
|       |                                                            long unsigned int
|       |                                                          %u
|    57 |                              i, test_data[i].test_str,
|    58 |                              test_data[i].expected_size, size);
|       |                              ~~~~~~~~~~~~~~~~~~~~~~~~~~
|       |                                          |
|       |                                          size_t {aka unsigned int}
| ../git/test/test-config-parse-logsize.c:56:74: error: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
|    56 |                         warn("[%zu] Str %s expected size %lu, got size %lu\n",
|       |                                                                        ~~^
|       |                                                                          |
|       |                                                                          long unsigned int
|       |                                                                        %u
|    57 |                              i, test_data[i].test_str,
|    58 |                              test_data[i].expected_size, size);
|       |                                                          ~~~~
|       |                                                          |
|       |                                                          size_t {aka unsigned int}
| cc1: all warnings being treated as errors
```

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I70a8077f2ab990a3b5aaab85aad545411ebd0a04
diff --git a/test/test-config-parse-logsize.c b/test/test-config-parse-logsize.c
index 4946cf0..7afbd1c 100644
--- a/test/test-config-parse-logsize.c
+++ b/test/test-config-parse-logsize.c
@@ -53,7 +53,7 @@
 			     test_data[i].test_str, test_data[i].expected_rc,
 			     rc);
 		} else if (rc == 0 && test_data[i].expected_size != size) {
-			warn("[%zu] Str %s expected size %lu, got size %lu\n",
+			warn("[%zu] Str %s expected size %zu, got size %zu\n",
 			     i, test_data[i].test_str,
 			     test_data[i].expected_size, size);
 		}