Use "...", not the funky unicode version.

tutorials/hist/histpalettecolor.C

@@ -4,7 +4,7 @@
 /// Palette coloring for histogram is activated thanks to the options `PFC`
 /// (Palette Fill Color), `PLC` (Palette Line Color) and `AMC` (Palette Marker Color).
 /// When one of these options is given to `TH1::Draw` the histogram get its color
-/// from the current color palette defined by `gStyle->SetPalette(…)`. The color
+/// from the current color palette defined by `gStyle->SetPalette(...)`. The color
 /// is determined according to the number of objects having palette coloring in
 /// the current pad.
 ///

tutorials/hist/thstack2palettecolor.C

@@ -5,7 +5,7 @@
 /// (Palette Fill Color).
 /// When this option is given to `THStack::Draw` the histograms  in the
 /// `THStack` get their color from the current color palette defined by
-/// `gStyle->SetPalette(…)`. The color is determined according to the number of
+/// `gStyle->SetPalette(...)`. The color is determined according to the number of
 /// histograms.
 ///
 /// In this example four 2D histograms are displayed with palette coloring.

tutorials/hist/thstackpalettecolor.C

@@ -5,7 +5,7 @@
 /// (Palette Fill Color), `PLC` (Palette Line Color) and `AMC` (Palette Marker Color).
 /// When one of these options is given to `THStack::Draw` the histograms  in the
 /// `THStack` get their color from the current color palette defined by
-/// `gStyle->SetPalette(…)`. The color is determined according to the number of
+/// `gStyle->SetPalette(...)`. The color is determined according to the number of
 /// histograms.
 ///
 /// In this example four histograms are displayed with palette coloring.