fix: repl.txt example

Signed-off-by: Shabareesh Shetty <[email protected]>

Author: ShabiShett07

lib/node_modules/@stdlib/blas/base/dtbsv/docs/repl.txt

@@ -76,7 +76,8 @@
     > var order = 'row-major';
     > var uplo = 'upper';
     > var trans = 'no-transpose';
-    > {{alias}}( order, uplo, trans, 'unit', 3, 1, A, 2, x, 1 )
+    > {{alias}}( order, uplo, trans, 'unit', 3, 1, A, 2, x, 1 );
+    > x0
     <Float64Array>[ 0.0, 8.0, -7.0, 3.0 ]