SDL_image: nanosvg.h: update from mainstream (5b04f)

SDL Commits
1 
From 5b04f48b041926bca47a196bed31c0b4695e6d82 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sat, 21 Dec 2024 21:10:50 +0300
Subject: [PATCH] nanosvg.h: update from mainstream

(cherry picked from commit bcc97c044266080256ef6ed0d690859677212b2b)
---
 src/nanosvg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nanosvg.h b/src/nanosvg.h
index 93454160..e58ea5ca 100644
--- a/src/nanosvg.h
+++ b/src/nanosvg.h
@@ -1296,7 +1296,7 @@ static unsigned int nsvg__parseColorRGB(const char* str)
 				while (*str && nsvg__isdigit(*str)) str++;	// skip fractional part
 			}
 			if (*str == '%') str++; else break;
-			while (nsvg__isspace(*str)) str++;
+			while (*str && nsvg__isspace(*str)) str++;
 			if (*str == delimiter[i]) str++;
 			else break;
 		}