bench: fix benchmark name

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/blas/ext/base/sindex-of-row/benchmark/c/benchmark.length.c

@@ -25,7 +25,7 @@
 #include <sys/time.h>
 #include <stdint.h>
 
-#define NAME "sindexofrow"
+#define NAME "sindex_of_row"
 #define ITERATIONS 10000000
 #define REPEATS 3
 #define MIN 1