Various messaging updates

Author: argiopetech

base9/Star.cpp

@@ -236,7 +236,7 @@ void StellarSystem::readCMD(const string &s, int filters, const Settings &settin
 
         reportStreamFailuresAt("std.deviation");
 
-        if (!settings.allowNegativeSigma && sigma < 0)
+        if (!settings.allowNegativeSigma && (sigma < 0))
         {
             photometryError("Enable negative sigma values with '--allowNegativeSigma'");
         }
@@ -247,7 +247,7 @@ void StellarSystem::readCMD(const string &s, int filters, const Settings &settin
         else if (!settings.ignoreLowSigma && (sigma > 0) && (sigma < 0.01))  // 0.01 mag warning limit arbitrary
         {
             if (!warnedOnce) {
-                photometryWarning("Low sigma");
+                photometryWarning("Low sigma (< 0.01). '--ignoreLowSigma' to silence.");
                 warnedOnce = true;
             }
         }

base9/Utility.cpp

@@ -204,6 +204,13 @@ namespace base
             std::ifstream parsFile;
             parsFile.open(filename);
 
+            if (!rData)
+            {
+                cerr << "***Error: Result file " << settings.files.phot << " was not found.***" << endl;
+                cerr << "(Exiting...)" << endl;
+                exit (1);
+            }
+
             bool hasY, hasCarbonicity;
 
             getline(parsFile, line); // Parse header

sampleMass/sampleMass.cpp

@@ -323,7 +323,7 @@ void Application::run()
         if (!rData)
         {
             cerr << "***Error: Photometry file " << settings.files.phot << " was not found.***" << endl;
-            cerr << ".at(Exiting...)" << endl;
+            cerr << "(Exiting...)" << endl;
             exit (1);
         }