Change KB to kB
Change KB to kB, as this is the proper way to write kilo bytes
diff --git a/yotta/data/example-benchmark/main.cpp b/yotta/data/example-benchmark/main.cpp
index 36cfc0e..44e66d9 100644
--- a/yotta/data/example-benchmark/main.cpp
+++ b/yotta/data/example-benchmark/main.cpp
@@ -229,7 +229,7 @@
CODE; \
} \
\
- mbedtls_printf( "%9lu KB/s, %9lu cycles/byte\r\n", \
+ mbedtls_printf( "%9lu kB/s, %9lu cycles/byte\r\n", \
i * BUFSIZE / 1024, \
( mbedtls_timing_hardclock() - tsc ) / ( j * BUFSIZE ) ); \
} while( 0 )