[=, this] -> [&]

```
 /home/runner/work/EICrecon/EICrecon/src/algorithms/digi/MPGDTrackerDigi.cc:156:21: error: lambda capture 'this' is not used [-Werror,-Wunused-lambda-capture]
  156 |   m_stripRank = [=, this](CellID vID) {
      |                   ~~^~~~
1 error generated.
```

Author: veprbl

src/algorithms/digi/MPGDTrackerDigi.cc

@@ -153,15 +153,15 @@ void MPGDTrackerDigi::init() {
   }
 
   // Ordering of SUBVOLUMES (based on "STRIP" FIELD)
-  m_stripRank = [=, this](CellID vID) {
+  m_stripRank = [&](CellID vID) {
     int rank;
     CellID sID = vID & m_stripBits;
     for (rank = 0; rank < 5; rank++)
       if (sID == m_stripIDs[rank])
         return rank;
     return -1;
   };
-  m_orientation = [=, this](CellID vID, CellID vJD) {
+  m_orientation = [&](CellID vID, CellID vJD) {
     int ranki = m_stripRank(vID), rankj = m_stripRank(vJD);
     if (rankj > ranki)
       return +1;