From f90404e85f5dcdbe9022b0a058412812ddea5f44 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Wed, 17 Oct 2012 15:10:50 -0700
Subject: describe_symmetry: Print plus sign only if a minus sign isn't

---
 libcrystfel/src/symmetry.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/libcrystfel/src/symmetry.c b/libcrystfel/src/symmetry.c
index 03f04bbd..5cc073b4 100644
--- a/libcrystfel/src/symmetry.c
+++ b/libcrystfel/src/symmetry.c
@@ -1622,9 +1622,11 @@ static char *get_matrix_name(signed int *v)
 			continue;
 		}
 
-		if ( printed ) add_chars(text, "+", max_len);
-
-		if ( v[i]<0 ) add_chars(text, "-", max_len);
+		if ( v[i]<0 ) {
+			add_chars(text, "-", max_len);
+		} else {
+			if ( printed ) add_chars(text, "+", max_len);
+		}
 
 		if ( abs(v[i])>1 ) {
 			char num[3];
-- 
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