fix(server.c): add newline only if there isn't one already

config.mk

@@ -1,5 +1,5 @@
 # feuille version
-VERSION = 1.19.3
+VERSION = 1.19.4
 
 # paths (customize them to fit your system)
 PREFIX = /usr/local

feuille.1

@@ -14,7 +14,7 @@
 . ftr VB CB
 . ftr VBI CBI
 .\}
-.TH "feuille" "1" "November 2022" "feuille 1.19.3" ""
+.TH "feuille" "1" "November 2022" "feuille 1.19.4" ""
 .hy
 .SH NAME
 .PP

server.c

@@ -227,11 +227,14 @@ unsigned long read_paste(int connection, char **output)
         return 0;
     }
 
-    /* end the buffer with a newline */
+    /* end the buffer with a newline if there's none */
+    if (buffer[total_size - 1] != '\n') {
         buffer[total_size]      = '\n';
+        total_size++; /* add newline to total size */
+    }
 
     *output = buffer;
-    return total_size + 1; /* newline */
+    return total_size;
 }
 
 /**