patch 8.1.0097: superfluous space before exclamation mark

Problem:    Superfluous space before exclamation mark.
Solution:   Remove the space.  Don't translate debug message.

src/regexp_nfa.c

@@ -2989,7 +2989,7 @@ st_error(int *postfix UNUSED, int *end UNUSED, int *p UNUSED)
 	fclose(df);
     }
 #endif
-    EMSG(_("E874: (NFA) Could not pop the stack !"));
+    EMSG(_("E874: (NFA) Could not pop the stack!"));
 }
 
 /*
@@ -5593,7 +5593,7 @@ nfa_regmatch(
     debug = fopen(NFA_REGEXP_DEBUG_LOG, "a");
     if (debug == NULL)
     {
-	EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG);
+	EMSG2("(NFA) COULD NOT OPEN %s!", NFA_REGEXP_DEBUG_LOG);
 	return FALSE;
     }
 #endif

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    97,
 /**/
     96,
 /**/