patch 8.1.1913: not easy to compute the space on the command line
Problem: Not easy to compute the space on the command line.
Solution: Add v:echospace. (Daniel Hahler, closes #4732)
diff --git a/src/vim.h b/src/vim.h
index 254d3ef..dca8748 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1981,7 +1981,8 @@
#define VV_TERMBLINKRESP 89
#define VV_EVENT 90
#define VV_VERSIONLONG 91
-#define VV_LEN 92 // number of v: vars
+#define VV_ECHOSPACE 92
+#define VV_LEN 93 // number of v: vars
// used for v_number in VAR_SPECIAL
#define VVAL_FALSE 0L