patch 8.1.0097: superfluous space before exclamation mark

Problem:    Superfluous space before exclamation mark.
Solution:   Remove the space.  Don't translate debug message.
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index 3c270e6..0ead03a 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -2989,7 +2989,7 @@
 	fclose(df);
     }
 #endif
-    EMSG(_("E874: (NFA) Could not pop the stack !"));
+    EMSG(_("E874: (NFA) Could not pop the stack!"));
 }
 
 /*
@@ -5593,7 +5593,7 @@
     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